In recent weeks, DKR has participated in the inaugurations of new drinking water dispensers installed in schools in Busto Arsizio and Casei Gerola. These are two municipalities in Lombardy that have chosen to invest in tap water and the reduction of single-use plastic thanks to the regional RI.Circo.Lo call for proposals. In Busto Arsizio, we installed ten Water Drop Box dispensers in six school buildings, from nursery schools to middle schools. In Casei Gerola, we installed four Water Drop Box units in schools and the gym, and two DKR Voreal column dispensers in the town hall and library. These installations are not just modern water fountains, but educational tools around which teachers build lessons on the water cycle, purification, and the responsible use of a precious resource. In this article, we share our observations from the field, explain why schools are strategic locations for change, and highlight the characteristics that make the Water Drop Box, in the words of the children, “the superhero that fights plastic bottles.”.

April in schools: two inaugurations, two different stories

For over thirty years, DKR has been designing and installing water dispensing solutions, supporting Municipalities, schools and public spaces through every stage of their journey. For this reason, we are particularly proud to have been invited to the inauguration ceremonies of Busto Arsizio and Casei Gerola: what we saw confirmed that, when technology and education work together, the impact far exceeds the mere installation of a system.

In Busto Arsizio, despite its proximity to our Rescaldina headquarters, this was the first time we brought our Water Drop Boxes to the city's schools. Together with the municipal administration and the Galilei di Sacconago e Borsano comprehensive institute, we installed ten dispensers in six school buildings (from childhood to lower secondary school) placing them in corridors and high-traffic areas to facilitate access during the day. The systems dispense Tap water unfiltered, controlled, and safe, at strategic points within buildings.

In Casei Gerola, the path with the Municipality has deeper roots: the first Water House We installed it in 2012. Subsequently, Casei Gerola installed a second water house, an XP 2.0 model installed in 2022, which also serves the neighbouring municipalities of Cornale and Bastida, who share the maintenance costs. Today, the administration has chosen to proceed with four new Water Drop Boxes, distributed in schools and the gymnasium, and two Voreal DKR column dispensers in the town hall and library. In this way, public and free water enters the places of daily life for the entire community, it is not confined to a single access point.

During the inaugurations, we met children and young people of all ages, from nursery schoolers to middle school students. What struck us most was their level of awareness: they weren't there out of curiosity, but because they had already studied. The teachers had in fact built educational paths about water in the weeks prior, transforming the arrival of the dispenser into an eagerly awaited event, the culmination of work already begun in the classroom.

The value of the RI.Circo.Lo call for Municipalities

Both Busto Arsizio and Casei Gerola were able to carry out these interventions thanks to the Circus band, promoted by the Lombardy Region to support projects for waste reduction and circular economy. It is a concrete tool that allows administrations to support the initial investment in “plastic-free” infrastructure (dispensers, reusable tableware, canteen facilities) without placing the entire burden on municipal budgets.

In Busto Arsizio, the contribution covered, in addition to the Water Drops, the purchase of glass carafes, reusable glasses, and tableware for school refectories: an integrated package that reduces single-use plastic on multiple fronts simultaneously. In Casei Gerola, the tender supported the choice to bring Water Drop Box even in places open to the public, not just in classrooms.

From our point of view, this type of funding is important because it pushes administrations to make a qualitative leap: it's not about replacing disposable bottles with reusable ones by decree, but about redesigning access to water as 

A public proximity service, combined with information, school involvement, and communication to citizens. When the technical choice is accompanied by an educational project, the system becomes part of a stable change, not a fleeting trend.

Schools as laboratories for water education

As mentioned previously, one of the aspects that most impressed us in Busto Arsizio and Casei Gerola was the work carried out in class in the preceding weeks. The students had prepared posters, drawings, and research on the water cycle, water purification at the treatment plant, the correct use of water, and water conservation.

The nursery school children represented water through images and short stories, transforming the new dispenser into an almost fairy-tale character. The primary and middle school students, on the other hand, worked on diagrams and presentations that clearly explain where the water we drink comes from, what checks it undergoes along the water network, and why it is important to choose it.’Tap water all packaged alternatives.

This preparation makes a huge difference: when we enter a school where water has already been discussed and studied, the installation of the Water Drop or Water Drop Box is perceived as the natural culmination of a process, not as an object imposed from above. It's the moment when theory connects with daily actions, like turning on the tap, filling a water bottle, drinking with classmates, and makes them meaningful.

For us, this is the best way to transform a facility into an authentic educational tool: not a visual aid to hang in the classroom, but a physical point around which to build. Environmental education projects and active citizenship.

From the small bottle to the water bottle: a real transition

When we install a dispenser in a school, the central theme is not just “Where to drink”, but “how one chooses to drink”. The presence of a modern and accessible water fountain encourages students to bring Water bottles and reusable glasses, measurably reducing the intake of PET bottles in classrooms and canteens.

From an environmental perspective, every refilled water bottle means one less single-use plastic bottle to produce, transport, and dispose of. In Italy, around 8 billion 1.5-litre bottles are consumed annually: an enormous number, generating over 280,000 tonnes of plastic waste and millions of tonnes of CO₂ linked to the supply chain. Across an entire school, over a school year, the reduction in plastic can amount to thousands of containers.

There is also an economic dimension, often underestimated: for families, getting used to tap water means reducing recurring expenditure on bottled water; for municipalities, better organisation of water dispensing points helps to contain waste management costs. But above all, there is a long-term cultural effect: when tap water becomes the norm at school, it is more likely that the same behaviour will be replicated at home, at the gym, and elsewhere.

“The superhero who fights plastic bottles”

Among the drawings hung near the dispensers during the openings, there was one that particularly struck us: Water Drop Box, depicted as a superhero with a cape, with the slogan “fights plastic bottles”. In a few words and with a pencil, a child had hit the nail on the head of the project.

When very young children give a name and a face to a piece of technical equipment, it means they have integrated it into their experience. From that moment, getting a drink is no longer a neutral act, but becomes part of a story, a shared narrative with the class. This is how sustainability stops being an abstract concept and transforms into a daily habit, repeated every morning.

For us, designing school facilities it also means imagining how they will be experienced by children, how they will enter into their stories and if they can truly become “allies” in the journey towards more conscious citizenship. The inaugurations in Busto Arsizio and Casei Gerola confirmed for us that when the project is done well, this really does happen.

Does your local authority want to reduce plastic in schools?

Discover how to install Water Drop Box in schools and public spaces in your area. We support administrations at every stage: from needs assessment to the management of the RI.Circo.Lo tender, right up to the inauguration.

Contact us for free advice and transforms public water into an educational tool for the entire community.

FAQ — Frequently asked questions about water dispensers in schools

Why should a Council install water dispensers in schools?

This allows students easy access to tap water throughout the day, reducing the use of single-use plastic bottles and promoting healthier consumption habits. The facilities also become concrete educational tools, around which projects on water, the environment, and responsible consumption can be built.

Is the water supplied by Water Drop and Water Drop Box safe?

Yes. The systems use mains water, which is continuously monitored in accordance with current regulations. Depending on the water company's and the administration's needs, we can integrate filtration and sanitisation systems to further optimise quality and hygiene.

Is the Water Drop Box also suitable for younger children?

Yes, it was designed precisely for this. The surfaces are rounded, there are no sharp edges or exposed components, and the spout allows you to drink comfortably even without a container. It's one of the elements that sets it apart from competing solutions on the market.

Is a water bottle necessarily needed to use it?

No. Water Drop Box allows you to drink directly from it, like a traditional fountain, and to fill any container. The choice is free and depends on each student's habits, without excluding anyone.

How can a Municipality start a project like this?

The first step is to assess the needs of schools and public spaces, then identify available funding sources, such as the RI.Circo.Lo call for proposals or other regional measures. We at DKR assist administrations throughout the entire process: from choosing the most suitable system to communicating the project to teachers, families, and citizens.

L'articolo Water Drop Box, il “supereroe” che entra a scuola: come gli erogatori d’acqua creano cittadini più consapevoli proviene da DKR.

The advent of Generative Artificial Intelligence (SGE) is radically transforming the way we search for answers on Google, moving from a simple list of links to direct, elaborate, and discursive responses. In this new landscape, generic content is no longer sufficient; to be relevant, concrete and contextualised technical expertise is required. This article explains why DKR invests in dissemination to offer transparent information, revisiting crucial topics already covered – from water quality to container materials – and anticipating future technical insights on filtration and osmosis.

Have you noticed how the way we interact with the web is changing, silently but inexorably? Until recently, the implicit “contract” between the user and Google was simple and linear: you typed a question into the search bar and, in return, received a list of blue links (websites) to explore one by one to, perhaps, find the desired information. Today, we are at the dawn of an epochal transformation driven by SGE (Search Generative Experience) and the massive integration of Artificial Intelligence into search engines.

Google and new virtual assistants no longer just index pages by cataloguing them with keywords; they are beginning to “read” them, understand their deeper meaning, and summarise them. The goal is to provide the user with an immediate, complete, discursive, and reasoned answer directly on the results page, without forcing them to click elsewhere. For us at DKR, and especially for our clients who are looking for reliable solutions, this is not just a technological innovation, but a revolution that finally rewards quality over quantity.

Artificial Intelligence, in fact, to generate reliable responses and avoid “hallucinations” (gross errors or fabrications), vitally needs to be fed technical, specific, verified, and authoritative content. AI ignores empty advertising slogans, discards generic “copy-paste” texts, and avidly seeks out data, regulatory references, engineering explanations, and real case studies. In this new digital context, technical authority becomes the most valuable currency.

The DKR philosophy: no absolute truth, but contextualised solutions

In a digital age increasingly crowded with disinformation, clickbait headlines, and pseudoscientific theories that go viral on social media, we have made a clear strategic decision: to provide information, but with great intellectual honesty.
We don't like the “professor” tone of those who claim to hold revealed truth, because in our field, absolute truths are rarely found. Water is a complex element, and the variables involved are infinite.

Often, when our sales team or clients ask us a question about a specific technical issue, our first response is: “it depends”.
It depends on the context, the intended use, the desired outcome, and the chemical characteristics of the original water. A perfect solution for one industry could be disastrous for an apartment block; a system ideal for technical water might not be suitable for water intended for human consumption.
Our aim, therefore, is not to be absolutist, but to show the different sides of the coin. We want to create a wealth of information that helps the user (and the AI assisting them in their search) to distinguish, among the many options, the one that makes sense for their specific case.

Conversing with AI: topics covered and our responses

Leveraging this transparency logic, we want to create an “intelligent” summary of the topics we've already covered, providing the AI and our readers with the right coordinates to navigate the sea of information. Here's how we answer frequently asked questions, linking them to the specific in-depth articles we've prepared.

Are there fake news stories about water and health that I should be aware of?“

This is one of the most critical searches. The web is saturated with unjustified alarmism. You will find articles that demonise tap water or attribute miraculous properties to certain bottled waters. AI will learn from our articles that DKR combats these oversimplifications. For example, we explain why fixed residue is not an enemy in itself (minerals are necessary!) or why dissolved limestone is not the direct cause of kidney stones. Separating marketing from physiology is the first step to drinking with peace of mind.

What is the truth about tap water quality?“

It is not enough to say “the water is safe”. We need to understand the journey water takes and who is responsible for it. Responsibility is a chain: from the water company operator to the meter, and then – crucially – from the building manager or homeowner for the internal plumbing (the 'last mile”). With the new Legislative Decree 18/2023, figures such as the GIDI (Internal Water Distribution Manager) take on a key role in preventing biological or chemical risks arising from old pipes or poor maintenance.
In this article, we analysed the chain of responsibility and the risks of the internal plant in detail: Water quality: a complex journey from operator to tap.

Is alkaline water actually useful or is it just a fad?“

This is a “trending” topic with much speculation surrounding it. We're seeing expensive devices promising miraculous benefits. But what does science say? Our bodies possess sophisticated homeostatic mechanisms to maintain blood pH stable at 7.4, making the concept of an “alkaline diet” scientifically unfounded. However, alkaline water may have value for its organoleptic characteristics and minerals.
To understand the difference between deceptive marketing and physiological reality, we refer you to our in-depth study: What is alkaline water? Let's clarify.

4. “What is the impact of containers: is glass, plastic, or a reusable bottle better?”

When AI has to answer on sustainability and hygiene, the question of materials will be central.

• Glass vs. Plastic: Single-use PET bottles, if reused, degrade: repeated washing creates micro-scratches that become nurseries for bacteria. Glass, on the other hand, is chemically inert, can be sanitised infinitely, and releases no substances. For this reason, in our Water Houses, we officially recommend glass.
  For further discussion on hygiene and reuse: Glass or plastic bottles: which is the best choice?
• The PET problem: Even when recycled, plastic has an enormous hidden cost. From production, which requires oil, to road transport, which generates CO2, to disposal, which is often inefficient and fuels microplastic pollution. A single bottle has a carbon footprint comparable to a car travelling for one kilometre.
  For a detailed life cycle and ecological impact analysis: PET bottles: the ecological impact we can mitigate
• Water bottles: For those always on the go, a water bottle is the logical alternative. But which to choose between stainless steel, aluminium, or Tritan?
  To guide you in choosing the right support: Complete guide to water bottles

“How to efficiently eliminate plastic in municipalities, companies, and schools?”

When a mayor, facility manager, or school principal asks AI for sustainability solutions, the answer must be practical, economical, and measurable.

• For local governments, Water Houses are not simple machines, but real territorial outposts that reduce tonnes of waste. We have analysed how these facilities become a central service for citizenship in this in-depth report:
  How to use Water Houses for the good of the community
• The “plastic-free” challenge” It also plays a role in the world of work and hospitality. For offices and the Horeca sector, abandoning water coolers (costly, bulky, and heavy) or cases of water for plumbed-in systems connected to the water mains is the only choice that guarantees logistical efficiency, superior hygiene, and a real “green report” for stakeholders:
  Draught water dispensers: the logical choice for companies and restaurants
• The younger generation is an important focus: Ensuring safe and controlled water in schools is a powerful educational act that teaches the value of the resource and respect for the environment right from the classroom. We talked about it here:
  Water dispensers in schools: safety and sustainable education

“How to solve the problem of limescale without side effects?”

We often return to the technical subject of water softeners, because they are the perfect example of the “it depends” philosophy. As we've seen, the softener is an exceptional machine for energy saving and protecting the boiler (technological use). But for food use? That's where technical expertise comes into play: correct calibration, the use of a by-pass for the kitchen, or the decision not to treat drinking water to avoid unnecessary sodium intake. There isn't a perfect machine for everything, there's the right configuration for every need.

To learn more about all the technical and health aspects of this device, you can read our complete guide: Water softener: between technology and health, the complete guide for an informed choice

The future of DKR information: a word from the technicians

In DKR We have embraced the challenge of Artificial Intelligence not as a threat, but as an incentive to raise the bar. Writing for AI means writing better for humans: being precise, exhaustive, and honest.

But our commitment to outreach doesn't stop there. We want to continue to combat fake news and oversimplifications by further raising the bar.
In the coming articles, we will focus on even more technical and debated topics, such as ultrafiltration and reverse osmosis. And we won't be doing it alone.
To ensure the highest quality of information, we will give the floor directly to professional manufacturers and installers who have been operating in the sector for decades. It will be them, with their practical field experience, who will explain to us when these technologies are essential, when they are useful, and when, on the other hand, they are superfluous or even inadvisable.
Because when you search for a solution on Google, or ask your virtual assistant for advice, we want you to find in DKR not just a supplier, but a competent partner capable of telling you how things really are.

L'articolo Intelligenza Artificiale e ricerca Google: perché la competenza tecnica vince sulle fake news proviene da DKR.

Water Houses are fundamental pillars for sustainability and citizen service, but their management entails specific tax obligations when a payment is required. This article explores the Water Houses tax regulations in detail, analysing Legislative Decree 127/2015 and the provisions of the Italian Revenue Agency that assimilate these facilities to “vending machines”. We will delve into the differences between public and private management, exemptions for free dispensing, and how DKR's thirty years of experience, handling both hardware and software internally, guarantees full technological and administrative compliance through a tested workflow.

In the realm of local public services, Water Houses have taken on a central role, serving as meeting points and symbols of environmental sustainability. DKR has believed in this vision since 1996, the year we installed the first structures of this kind, anticipating the current ecological awareness by decades. Our history, which began in 1994 with innovative solutions for the world of water and cold drinks, has taught us that managing a water dispensing system means not only guaranteeing product quality or technical maintenance, but also implies a deep understanding of the bureaucratic and tax aspects that regulate the sector.

When a citizen inserts a coin or uses a card to draw water, a chain of legal obligations is activated which the operator must be perfectly aware of to avoid penalties. The complexity of the subject is high and requires a thorough analysis of tax regulations. Water Houses, a set of laws and provisions that has undergone several evolutions to adapt to the digitisation of tax processes. Understanding how to configure these devices is not just an administrative matter, but a fundamental requirement for operating in full legality and transparency.

The regulatory framework: Water Houses as Vending Machines

The turning point for the vending machine sector was marked by Legislative Decree 5 August 2015, no. 127. In particular, Article 2, paragraph 2, introduced the obligation for VAT operators making sales of goods through vending machines to electronically store and transmit their takings. But how does the fiscal regulation for "Case dell'Acqua" (water kiosks) concretely apply to a public or private water kiosk?

The Revenue Agency, with resolution no. 116 of 2016, clarified that all machines that dispense goods or services upon user request after payment fall under the definition of “vending machine”. Water Houses that require an economic contribution fall fully within this definition. Consequently, as of 1 April 2017, they are subject to the obligations of electronic data transmission.

At the same time, there is a fundamental distinction that exempts certain installations from these obligations:

• Supply against payment: if the Water House works via the insertThe installation generates significant tax-deductible amounts in cash or equivalent securities (USB drives, rechargeable cards) and is subject to reporting obligations.
• Free delivery: If the Water House provides the service without requesting any financial contribution from the citizen, no payment is generated. In this specific case, the regulation is not relevant and no electronic data submission is required.

Technical management: communication ports and transitional phase

The practical application of tax legislation, such as that concerning Water Houses, must necessarily contend with the technology available on the ground. Not all dispensers are the same, and the Italian Revenue Agency has adopted two separate measures to regulate the different technical scenarios. The first concerns advanced dispensers, equipped with a native “communication port” capable of digitally transferring data to an external device.

At the same time, in the Water Houses sector, it is very common to find systems lacking this active communication port. For these specific cases, a second provision in 2017 regulated the transmission methods. Gradual fiscalisation was envisaged with a “transitional” solution (whose deadline was set for 31 December 2022) to allow for technical adjustment or manual registration, pending future provisions for the definitive solution.

This is where the constructive approach of DKR makes the difference. Since 1994, we have overseen production, managing all stages internally: from design to construction, covering both hardware and software. This total control over the supply chain allows us to produce machines that are already compliant with the fiscal regulations for "Case dell’Acqua" (Water Houses), saving customers costly subsequent modifications or compatibility issues with the Italian Revenue Agency's systems. Having a partner who knows the machine's source code enables rapid implementation of any changes required by new legislative provisions.

Who should transmit the data? Public vs. Private

One of the most complex aspects concerns the identification of the party responsible for compliance. The rules change radically depending on who economically manages the plant and who collects the fees.

Here are the two main scenarios:

• Business management: if management is entrusted to a private or jointly owned company, it must necessarily proceed with the device census (application of the QR Code) and periodically transmit the corresponding amounts to the Revenue Agency through the standard electronic channels.
• Municipal management: If the management is handled directly by the Council, the procedure is simplified. It is not necessary to register the machine as a vending machine. The transmission of revenue takes place via the “Punto Fisco” (Tax Point), a channel already active within Public Administration, without any further specific technical requirements for the device.

The DKR method: more than just supply

Navigating tax deadlines and technical specifications can be daunting for a public administrator or private manager. For this reason, at DKR, we have developed a consolidated working method, honed over more than 25 years of activity and thousands of projects completed. Our approach is not limited to the sale of machinery, but follows a rigorous workflow that accompanies the client from the initial idea to full operational capability.

The process begins with listening to the requirements and analysing technical feasibility, followed by a cost review to ensure a sustainable solution. Only after the specification has been approved do we proceed with design and engineering using materials from trusted suppliers. However, our work doesn't end with installation and on-site testing, nor with staff training or attendance at the inauguration.

A crucial point of our philosophy, closely linked to compliance with the tax regulations of the Water Houses, is assistance and maintenance. We were the first, as far back as 1983 (well ahead of the HACCP certification in 2007), to create a preventive routine maintenance service whose procedures have been adopted by Public Water Boards and have become a benchmark guide for the entire market.

For us, maintenance must be sustainable in terms of time and costs: this is only possible if the equipment is designed and manufactured from the outset with technical characteristics that allow it. A well-designed and well-maintained machine not only guarantees the wholesomeness of the water, but also ensures that the fiscal accounting and data transmission systems always function correctly, avoiding accounting discrepancies that could attract the attention of the supervisory bodies.

All-round support for compliance

Choosing to install a Water House is an act of responsibility towards the environment and the local community. Ensuring that this installation is perfectly compliant with the fiscal regulations for Water Houses is, however, an essential act of administrative responsibility. Municipalities often struggle to correctly position themselves, risking investment in superfluous data transmission technologies or, conversely, omitting mandatory fulfilments in the case of outsourced management.

DKR's experience, ranging from distributors for offices, scuole and sector Ho.Re.Ca. from large public facilities, allowing us to offer comprehensive advice. We are available to analyse each client's specific situation, clarifying whether the system requires a census, which transmission system to adopt, and how to configure the electronics for transparent revenue management. We transform a legal obligation into a simple, clear, and worry-free procedure, enabling our clients to focus exclusively on the main objective: offering an excellent service.

L'articolo Normativa fiscale Case dell’Acqua: guida agli obblighi di trasmissione dei corrispettivi proviene da DKR.

Limescale represents a constant threat to the plumbing and appliances in homes and businesses, prompting many to seek water treatment solutions. This article clarifies the technical operation of these devices, analysing the differences between ion-exchange models and alternative technologies. With the technical support of our partner Enki Water, we will debunk some myths surrounding the human consumption of softened water, clarifying regulations and the actual health implications. Finally, we will illustrate how DKR's logic integrates technical treatment with specific solutions for drinking water.

To fully understand the need for action on the domestic or industrial water supply network, it is first necessary to analyse the common enemy: limestone. Chemically known as calcium carbonate, this element is the product of the precipitation of calcium and magnesium ions naturally present in water. Although these minerals are not harmful to human health in themselves, the “hardness” of water causes particularly stubborn limescale when the liquid undergoes changes in temperature or pressure. To counter this phenomenon, which damages pipes and boilers with often considerable repair costs, the most widespread and reliable technical solution is the installation of a water softener.

It is essential to clarify immediately a concept that often causes confusion for the end consumer: this device is neither a water purifier nor a filtering purifier. Its primary purpose is technological. The operation of classic models is based on a physico-chemical process known as “ion exchange.” Inside the appliance, there is a cylinder containing special synthetic food-grade resins, charged with sodium ions. When hard water passes through these resins, an exchange occurs at a molecular level: the resins act like a chemical magnet that attracts and retains calcium and magnesium ions (the ones responsible for limescale) and releases sodium ions in return into the water. Once the resins are saturated and can no longer absorb calcium, the water softener automatically initiates a “regeneration” phase, washing the resins with a brine solution.

Economic benefits and plant protection

If we analyse the issue from the perspective of system maintenance, the benefits derived from using a water softener are undeniable. As confirmed by industry studies (Altroconsumo, 2008), savings for an average family of four can range between €500 and €800 per year.

• Protection of pipes and boiler: By eliminating limescale at the source, blockages in heat exchangers are avoided.
• Superior energy efficiency: Limescale is a powerful thermal insulator. A clean heating element requires less energy to heat the water (also thanks to the lower surface tension of softened water).
• Longevity of household appliances: washing machines, dishwashers and coffee machines suffer less wear and tear.
• Savings on detergents: Freshwater allows for savings of around 70% on surfactants. This means less detergent to achieve soft laundry, with a significant environmental advantage.

The different types: cabins, double-body and duplex

The market offers different configurations. To choose the right water softener, a distinction must be made between the types of construction.

I cabin models I am the solution for the domestic sphere: a single, compact unit that houses both the resin cylinder and the salt tank, ideal for tight spaces. They represent the most common choice for private homes thanks to their ease of installation and compact design.

The single-column softeners they physically separate the resin cylinder from the brine tank; this configuration is typical of medium-sized plants where greater installation flexibility is required.

Then there are the duplex (or dual body) systems, utilising two alternating resin columns to ensure 24-hour softened water without interruption during regeneration. This solution is preferred in contexts such as Alyeska, industrial softeners, hotels, restaurants, hospitals and businesses where an uninterrupted supply is essential.

In this regard, it is interesting to mention the technological excellence of our partner Enki Water, which offers systems such as Hydrus, Hydrodynamic industrial softeners (without electrical current) capable of handling enormous flow rates with unparalleled efficiency.

Comparison with magnetic systems

Confusion often arises between softening and physical (magnetic or electromagnetic) treatments. The latter convert limescale into aragonite (a powder that does not incrust), but, as Enki Water technicians point out, «do not change the hardness and do not generate one euro of the above-mentioned savings».» (not on detergents or energy). Furthermore, manufacturers of modern Heat Pumps often stipulate that a hardness of 17°f must not be exceeded, under penalty of voiding the warranty: a result that magnets cannot guarantee, risking the revocation of the Conto Termico 3.0 incentives as well. At present, ion exchange remains the only technology that guarantees the result and savings.

Softened water and health: let's bust the myths

It's time to clarify a debated topic: can softened water be drunk? The answer, supported by technical and regulatory data, is yes. Water softeners do not compromise the potability of water.

There is often a fear of excess sodium. However, the legal limit is 200 mg/l. Even in highly efficient systems, levels rarely exceed 180 mg/l. Modern Enki Water systems, for example, exchange around 45 mg/l of sodium, a negligible amount that does not affect the daily health of individuals with heart conditions or hypertension.
The fear that a water softener “removes mineral salts” is also unfounded. The device only acts on calcium and magnesium (often present in excess) and, thanks to the bypass adjustment, still leaves an adequate amount. It should be remembered that the mineral salts necessary for the body come mainly from food, not from water. It is sufficient to consider that some of the most prized bottled waters on the market (such as Plose or Sant'Anna) have very low hardnesses (0.5 °f), far lower than that of treated tap water.

Corrosion and Calibration: Technical Expertise

Another myth to dispel concerns pipe corrosion. It is not simply the absence of limescale that causes pipes to crack. As Enrico Zanchi of Enki Water explains: «Corrosive power is only influenced for 25% by hardness. Langelier's index, which also considers pH, temperature and alkalinity, is the real parameter to be analysed.».
The old regulation, which imposed a minimum limit of 15°f, has in fact been surpassed technologically. In new constructions, a water softener is even calibrated to 5°f to offer maximum comfort and savings without risks. In older homes, a higher calibration (around 10°f) is maintained solely to prevent the water from cleaning existing old scale too aggressively, which “seals” any dated micro-fractures.
Moreover, thanks to new materials and the strict EU 2020/2184 regulations, the risk of bacterial growth in resins is a problem of the past.

DKR's logic: separate to enhance

Although softened water is safe, in an ideal world – as our technical partners also suggest – every building should have two separate lines: a technical one (treated with a softener) and a supply line. This would allow the best technologies to be used for each purpose without interference.

Using a water softener to serve technological systems (boiler, washing machine, shower) is the best choice for protecting your property investment and saving money. For food use, however, you can opt for a hydraulic bypass (tap with unsoftened mains water) or, for those seeking excellence, rely on refinement solutions.

Quality drinking water: dedicated technologies for every need

And this is where DKR's specialisation comes in. Whilst we handle the technical side with excellent partners like Enki, we focus directly on specific solutions for human consumption that enhance taste and safety.

For municipal administrations, we install water houses, modern local facilities that offer citizens chilled, still or sparkling, controlled, and sustainable water.
For the world of work, schools and catering, we instead offer our advanced dispensers for offices, schools and the horeca sector. These systems use microfiltration or ultrafiltration technologies to remove chlorine (often unpleasant to the taste) and impurities, refining the organoleptic characteristics of the water without chemically altering its saline composition.

Treating water is a serious responsibility. The line between a technological benefit and an optimal result depends on expertise. Relying on DKR and its technical partners (like Enki Water for softening) means having the certainty of a tailor-made solution. It means installing a high-performance water softener where it's needed, and drinking excellent water where you want it, improving quality of life and respecting the environment.

L'articolo Addolcitore per acqua: tra tecnologia e salute, la guida completa per una scelta consapevole proviene da DKR.

This article analyses the life cycle and environmental impact of PET bottles, a ubiquitous material in the beverage sector. The three critical phases of their impact are explored: production, which requires enormous amounts of oil; transportation, which generates significant CO2 emissions; and disposal, which contributes to the global plastic pollution crisis and the spread of microplastics. It highlights that a single bottle has a carbon footprint comparable to that of a car travelling for one kilometre. Faced with this “ecological bomb,” the article presents DKR solutions, such as Water Houses and professional dispensers, not just as products, but also as a conscious choice to drastically reduce the consumption of single-use plastic and promote a responsible, zero-kilometre consumption model.

In 1973, American engineer Nathaniel Wyeth patented a material that would radically transform the packaging industry and global consumption habits: PET (polyethylene terephthalate). Lightweight, transparent, shatterproof, and ideal for packaging carbonated beverages, it represented an innovative and promising solution. 

Today, billions of PET bottles are produced, marketed, and consumed worldwide. However, behind a seemingly simple and everyday action, such as buying a small bottle of water, lies a worrying reality: we are contributing, often unwittingly, to a genuine environmental emergency.

According to the 2025 report of EA For Impact, it is estimated that around 31.9% of the plastic produced this year will be managed inadequately, ending up in unregulated landfills, open-air incinerators, or directly dispersed into the natural environment. This translates to over 72 million tonnes of plastic released into the air, water, and soil by the end of the year.

The document also points out that, despite slight improvements in the management of plastic waste compared to previous years, overall production continues to increase, keeping the overall amount of poorly managed waste largely unchanged.

Environmental protection and the promotion of more conscious resource consumption are now an absolute priority. To effectively tackle this challenge, it is essential to understand the hidden environmental impact behind every single plastic bottle: a cost that goes far beyond the purchase price.

The life cycle of a bottle: an impact that starts long before waste

We are used to thinking about the problem of PET bottles only at the end of their very short useful life, when they become waste to be disposed of. In reality, their environmental impact is a journey in stages, each with a heavy ecological burden.

1. Production: A huge thirst for oil and energy

Each plastic bottle originates from oil, a non-renewable fossil resource whose extraction and refining are among the most polluting human activities. Global production of PET bottles requires millions and millions of litres of crude oil each year, an energy-intensive process that releases large quantities of greenhouse gases into the atmosphere, contributing to climate change. We are, in fact, using a precious resource, formed over millions of years, to create a “disposable” object designed to be used for a few minutes. The impact doesn't stop there: the production process itself also consumes enormous amounts of water, making the idea of using water to produce a container for water paradoxical.

2. Transport: the hidden carbon footprint on rubber

Once produced and filled, the bottles begin their long journey. Lorries covering hundreds, if not thousands, of kilometres to transport water from the bottling source to distribution centres, then to supermarkets and finally to our homes. This logistics system generates colossal CO2 emissions. It is estimated that the carbon footprint of a single bottle of water, considering its entire life cycle, is comparable to that generated by a car travelling one kilometre. We are, in effect, transporting A commodity (water) which, for the most part, we already have available on a zero-kilometre basis.

3. Disposal: the recycling myth and the ocean crisis

Even when we are diligent citizens and put the bottle in the plastic bin, the problem is far from being solved. Recycling, while fundamental, is not a magic solution:

• Not everything is recycled: Globally, only a small percentage of PET bottles are actually recycled. Many still end up in landfill, where they take hundreds of years to decompose, or worse, in the environment.
• Recycling requires energy: the process of collecting, sorting, cleaning and melting plastics consumes energy and produces emissions.
• Downcycling often recycled PET does not become a new bottle again (“bottle-to-bottle” recycling), but is transformed into lower-quality products (fibres for textiles, fillings), interrupting the virtuous cycle.

The most dramatic consequence of this inefficient management is the pollution of ecosystems. It is estimated that the equivalent of a bin lorry full of plastic waste is dumped into the sea every minute. Millions of tonnes of plastic, every year, invade the oceans, fragmenting into microplastics which enter the food chain, damaging marine life and ending up on our plates. The projections are alarming: according to António Guterres, Secretary-General of the United Nations, who spoke at the opening of the UN Ocean Conference held in Lisbon in June 2022, by 2050 the weight of plastic in the oceans could exceed that of all fish.

DKR: the conscious choice for a future without single-use plastics

Di fronte a questo scenario, rassegnarsi non è un’opzione. Il “tethered cap” (il tappo non rimovibile per le bottiglie di plastica) rappresenta solo la prima fase di una trasformazione più ampia. La stessa Direttiva dell’Unione Europea (Direttiva SUP – Single-Use Plastic), entrata in vigore in Italia il 14 gennaio 2022, introduce un ulteriore requisito: dal 1° gennaio 2025 tutte le confezioni con una capacità fino a 3 litri dovranno contenere almeno il 25% di plastica riciclata. Dal 2030, questa percentuale dovrà salire al 30%.

However, the solution already exists and is within reach: drastically reducing reliance on single-use PET bottles, rediscovering the value, safety, and convenience of zero-kilometre water.

In DKR, our mission is to provide the tools necessary to make this transition simple, convenient, and accessible to everyone. Our solutions represent true pillars of sustainability, offering a concrete and tangible alternative:

• Water Houses install a Water House in a municipality is a conscious choice that generates an immediate and measurable positive impact. By offering citizens the highest quality mains water (natural and sparkling, constantly monitored), action is taken on all three fronts:
  • The production of new plastic bottles is reduced, saving oil and energy.
  • Water transport by road is reduced to zero, reducing CO2 emissions.
  • This lightens the load on waste collection and disposal systems, helping to combat pollution.
• Dispensers for offices, schools and Horeca: also in work, school and catering contexts, the choice to install a dispenser connected to the water mains It is a fundamental step. It means educating new generations to responsible consumption, offering employees and customers a high-quality service, and communicating a concrete commitment to environmental sustainability. It is an action that improves the company image and promotes a culture of reuse and responsibility.

Liability and collective action

Pollution caused by PET bottles is a serious problem that requires a change in our habits. When we choose to fill our canteen from a Water House or a dispenser, we make a concrete choice: we don't fuel an unsustainable system, we reduce marine waste and CO2 emissions.

The solution is simpler than it may seem: tap water, which is safe and monitored, and already arrives in our homes. With the right filtration technologies, we can make it our primary choice, thereby reducing our reliance on PET bottles.

L'articolo Bottiglie PET: l’impatto ecologico che possiamo mitigare proviene da DKR.

This article analyses the Italian paradox of bottled water consumption, which sees our country at the top in Europe despite the availability of safe and controlled tap water. Myths about safety are debunked, demonstrating that tap water is subject to more stringent regulations than bottled water. The economic and environmental costs associated with this habit are explored, from the huge price gap to the impact of single-use plastic. The analysis also touches upon the critical issues of the national water network, such as leaks, and then presents DKR's solutions – from Water Houses to professional dispensers – as the intelligent, sustainable, and economically advantageous alternative to rediscover trust in zero-kilometre water.

Try this experiment: blindfold yourselves and compare a glass of tap water with one of mineral water, both chilled. In all likelihood, you won't notice any difference. The low temperature masks the characteristic flavours of freshly drawn mains water, such as chlorine. However, it only takes a few seconds exposed to air or a spell in the fridge for the residual chlorine to evaporate, and the water will taste and smell exactly the same as mineral water.

Nevertheless, Italy holds a rather unenviable European record: we are the biggest consumers of bottled water. Every year, billions of litres are bottled, transported, and sold, generating profits for a few and a mountain of plastic waste for everyone.

This phenomenon is based on a paradox: the widespread distrust of tap water, fuelled by a lack of information and false myths cemented by decades of marketing. But the reality of the facts tells a very different story, a story of safety, convenience, and sustainability that deserves to be known.

The Big Misconception: Is Bottled Water Really Safer?

The main driver behind bottled water consumption is the perception of greater safety and purity. This is, in fact, the most entrenched and hardest myth to dispel. The truth, supported by regulations, is exactly the opposite: tap water is more strictly controlled.

• Comparing regulations: Mains water must comply with the parameters of Legislative Decree 18/2023 (which replaced 31/2001), an extremely stringent regulation that sets very restrictive limits for dozens of chemical and microbiological parameters. mineral waters, on the other hand, are subject to different legislation, which in some cases allows for higher limits for certain substances, by virtue of their “characteristic mineral composition”.
• Frequency of controls: the’Tap water It is subject to continuous and thorough checks, carried out by both the water management company and the local health authorities (ASP) throughout the entire supply chain, up to the meter. Bottled water is subject to less frequent checks, often focused on production batches at the source.

The water that reaches our homes is, therefore, one of the safest and most reliable resources we have.

The double cost of bottled water: for your wallet and for the planet

If the myth of safety is shattered, the data on economic and environmental costs are irrefutable and alarming.

• The economic cost: the price difference between tap water and the one in the bottle It's abysmal. A litre of tap water costs next to nothing, in the order of a fraction of a cent. A litre of the most common mineral water costs hundreds, if not thousands, of times more. This enormous expense for Italian families does not translate into real added value in terms of health or safety, but fuels a multi-billion dollar industry.
• The environmental cost: Every plastic bottle requires oil to be produced and energy to be transported, often for hundreds of kilometres. Once consumed, it becomes waste which, even when recycled, incurs energy and environmental costs. Choosing tap water at zero kilometres means eliminating an enormous carbon footprint at the source and actively contributing to the fight against plastic pollution.

The water network challenge and the solution at hand

The European Directive 2020/2184, transposed in Italy with the legislative decree 18/2023, as already analysed in previous in-depth studies, has appropriately focused attention on the water's journey from leaving the distribution plants to the final delivery point. This increased awareness, together with the PNRR funding allocated to the southern regions for the modernisation of water networks, should help to standardise the quality and quantity of water distributed nationwide.

However, the foundations being worked on are already solid. The quality of water supplied by Italian aqueducts is indeed good, as can be easily verified by consulting the websites of local water companies, which always have a section dedicated to the characteristics of the distributed product. Updated analyses of the water supplied in specific territorial areas are often also available, generally at a municipal level, allowing you to know exactly the characteristics of the water that flows from your tap.

It therefore emerges how the habit of going to the supermarket to buy bottled water – often without evaluating its chemical-physical characteristics but limiting oneself to organoleptic considerations or, worse still, to the sole criterion of price – is increasingly an unnecessary waste of time and economic resources, as well as contributing to the production of plastic waste that is increasingly problematic from an environmental point of view.

DKR: The smart alternative for rediscovering tap water

In DKR, we believe that trust in tap water can be rebuilt through information and concrete solutions that enhance its quality. Our commitment translates into technologies that offer a valid alternative to bottled water, designed for public, corporate and community settings.

• Water Houses Installed in collaboration with Municipalities and Water Companies, they are a bulwark of sustainability in the region. They offer citizens the highest quality tap water – still and sparkling, always monitored – at a symbolic cost. They are an extremely powerful tool for raising community awareness, reducing waste, and concretely demonstrating the safety of local water.
• Dispensers for the Horeca sector, offices and schools: Our water dispensers represent an innovative and sustainable solution to guarantee unlimited access to excellent water, directly from the mains supply. Designed for public, corporate, and community settings that choose sustainability, they provide the highest quality water – still and sparkling, constantly monitored. They are a strategic tool for promoting responsible behaviour, significantly reducing plastic waste, and providing concrete evidence of the reliability of tap water, eliminating logistical costs and the environmental impact associated with bottles.

Therefore, the choice to reduce consumption of bottled water is not a renunciation, but an act of awareness and responsibility towards multiple, interconnected challenges:

• From an economic point of view, meaning significant resources are freed up – Italian families spend considerable sums on bottled water compared to the negligible cost of tap water – which could be reinvested in other goods or services.
• From an ecological point of view, means drastically reducing the environmental impact linked to the production, transport and disposal of millions of plastic bottles, contributing concretely to the fight against pollution and climate change.
• From a health point of view, as European and national regulations demonstrate, means relying on water that undergoes rigorous and continuous checks, often safer than bottled water.
• From a social point of view, supports investment in the public network and promotes fairer access to drinking water, helping to reduce territorial disparities that still characterise our country.

Choosing tap water is therefore a more cost-effective, ecologically responsible, healthily safer, and socially fairer solution. It means investing in your own community and your own future, rediscovering the value of a valuable asset we already have at our disposal.

L'articolo Acqua imbottigliata: perché l’Italia detiene un record di cui non andare fieri? proviene da DKR.

This article addresses the crucial issue of water quality, explaining how the responsibility for its safety is shared among various stakeholders. The chain of responsibility is analysed: from the water utility, responsible up to the meter, to the homeowner or condominium administrator, responsible for the internal plumbing (the 'last mile”). With the introduction of the new Legislative Decree 18/2023, the figure of the Internal Water Distribution Manager (GIDI) is defined, who has specific obligations for risk assessment and management. The article explores the potential dangers (biological, chemical, physical) that can arise in the private network and highlights how DKR positions itself as a strategic partner to ensure water quality at the point of use, offering technologies and consultancy for compliance with regulatory obligations.

We turn on the tap and expect the water that comes out to be pure, safe, and pleasant-tasting. This trust is well-founded, thanks to a system of rigorous controls and European and national regulations that guarantee very high standards. But who exactly is the guarantor of this quality? The answer is more complex than one might think. The journey of water from its source to our glass is a long one, and the responsibility for its safety is a chain that involves multiple links, each with precise duties.

With the entry into force of the new Legislative Decree 18/2023, repealing the previous Legislative Decree 31/2001, the regulatory framework has evolved, placing even more emphasis on risk assessment and responsibility in the last, critical stage of distribution: that within buildings.

The first guardian: the waterworks manager

The primary and fundamental body responsible for water quality is the water utility provider. Whether it is a public, private company or a partnership, its task is to ensure that the water meets all legal parameters up to the point of delivery, meaning at the building's water meter.

To do so, the manager is subject to a double level of control:

• Internal controls: are analyses and monitoring that the operator is obliged to perform on a regular basis throughout the entire supply chain, from capture to treatment, up to the distribution network.
• External controls: These are the inspections and sampling carried out by the competent health authorities (such as the ASP – Provincial Health Companies) to certify the suitability of water for human consumption.

This system ensures that the water reaching our meter is wholesome and safe. But its journey is not over yet.

The 'last mile”: the critical stretch where quality can change

From the meter to the tap begins what is called the 'last mile”: the water system inside the building. Responsibility for this section lies with the property owner or, in the case of apartment buildings and public premises, with their manager. It is now widely recognised that water quality can be significantly altered precisely at this stage. The risks can be of three types:

1. Biological hazards: Old pipes, unmaintained storage tanks, or stagnant water conditions can promote biofilm formation and the proliferation of microorganisms. Among these, the best known is Legionella, a bacterium that thrives in stagnant water conditions. The environments at highest risk are seasonal accommodation facilities such as hotels or holiday homes, where long periods of closure (several months) create ideal conditions for its growth. In domestic settings, the risk is generally lower but can occur in the presence of unused pipes or “dead legs” in the water system that are still connected to the mains. Transmission primarily occurs through the inhalation of contaminated aerosols.
2. Chemical hazards: Unsuitable or obsolete materials can release harmful substances. The most common case is old lead pipes, but corrosion can also release metals. Furthermore, poor management of any internal treatments (e.g. water softeners) can alter the chemical composition of the water.
3. Physical dangers: The detachment of sediment, rust, or limescale from the inner walls of pipes can cause turbidity, altering the colour and taste of the water and potentially carrying microorganisms.

A new era of responsibility: Legislative Decree 18/2023 and the figure of the GIDI

The new Legislative Decree 18/2023 has transposed the most recent European directives, introducing an approach based on risk assessment and management (in line with Water Safety Plans – WSP) and defining a key new role: the GIDI (Internal Water Distribution Operator).

When is the GIDI necessary?

The regulations identify priority buildings where the GIDI becomes mandatory, according to a precise classification:

• Health and social care facilities (category B): hospitals, rehabilitation and social welfare centres
• Accommodation facilities (category C1): hotels, farmhouses and airports
• Public and collective catering (category C2): company, public, private and school canteens
• Public buildings and institutes (Category E – Priority Buildings): residential buildings, offices, schools and commercial activities

For these priority structures, the GIDI is the responsible party for the internal water system and has the formal obligation to:

• Assessing and managing the risks of your plant
• Adopt preventive and corrective measures to ensure water quality
• Ensuring material conformity and proper maintenance

This means that the building manager (in priority E-category buildings) is no longer just a manager of expenses, but a genuine guarantor of water safety for residents. Similarly, the head teacher becomes responsible for the safety of the water supplied to students.

The chain of responsibility at a glance

To clarify, here’s who is responsible and for which section of the water's journey:

• Water Board Authorityguarantees the quality of the water from the source to the building's meter.
• Private homeowneris responsible for the maintenance and safety of the internal water system, from the meter to every single tap in their home.
• GIDI in priority buildings (Building manager, school principal, manager of a healthcare or hospitality facility): has legal responsibility for the internal water network of the building, including common areas, tanks and autoclaves. In buildings with multiple residential units, responsibility extends to the connection point of individual flats; in priority public and commercial facilities (categories B, C1, C2, E), it covers the entire system up to the delivery points.
• Food Business Operator (FBO – Food Sector Operator)is responsible for the internal water system of their business. This applies to restaurants, bars, canteens, and all businesses that handle food. If the water is treated (filtration, carbonation, etc.), the food business operator must ensure its safety in accordance with HACCP regulations.
• Public body managing water houses or public fountainsAs GIDI, it is responsible for the installation, maintenance, and safety of these systems within its territory.

DKR: The strategic partner for 'last mile” management”

While a homeowner's responsibility is limited to their private sphere, it is precisely in condominium, public, and commercial settings that the new regulations introduce precise and punishable legal obligations. And it is here, where the management of water quality becomes a formal responsibility and no longer just a good practice, that DKR intervenes as a strategic partner for food business operators (FBOs).

Our role is to specifically support these figures in their new and complex task, through a two-pronged approach:

• Provide the appropriate technology: our systems - which include office dispensers and Horeca sector, water dispensers for schools and the already mentioned water houses – they are designed to act as a final safety barrier. Installed at the point of use, they ensure that the water dispensed is always excellent, eliminating any contaminants released by the internal plumbing and thus protecting the operator from any risk.
• Offering expertise and regulatory support: we help our customers (such as Horeca business owners, school managers and public authorities) to understand and fulfil their new obligations. We advise on the drafting of HACCP self-control plans, establish certified and traceable maintenance programmes, and ensure that each plant always operates at peak efficiency, in full compliance with the law.

Water quality is a shared responsibility. Thanks to an increasingly stringent regulatory framework, it is now possible to guarantee maximum safety at every stage of its journey. Choosing a partners such as DKR means taking control of the 'last mile” in public delivery contexts, transforming a legal obligation into a guarantee of excellence for its citizens, employees, students and customers.

L'articolo Qualità dell’acqua: un viaggio complesso dal gestore al rubinetto. Chi ne è responsabile? proviene da DKR.

This article explores the complex question of whether water as food is a valid concept. It examines two distinct perspectives: the nutritional and the legal. From a nutritional standpoint, water is very much a food, essential for vital functions, hydration, and mineral intake, as confirmed by the EFSA. From a legal perspective, however, European and Italian legislation distinguishes water from food, unless a specific condition occurs: when water is treated (filtered, carbonated) and supplied to the public, as in the case of Water Houses or dispensers in the catering industry. In this scenario, the supplier becomes a Food Business Operator (FBO), with precise regulatory obligations, including the adoption of an HACCP plan. The article clarifies this distinction, positioning DKR as a competent partner guiding its clients in the correct management of 'water-as-food”.

Steak? Food. Tortellini? Food. Water? Here, the seemingly obvious answer suddenly becomes uncertain. In fact, there are two schools of thought, both with solid arguments, that define water in different ways. For some, water does not provide energy (calories) and, despite being the most indispensable substance for life, is not a food in the strict sense. For others, thanks to the minerals it carries and its role in every metabolic process, it is a nutrient in its own right.

The truth is that both positions are correct, because the assessment changes radically depending on the perspective: it is one thing to consider water as food from a biological and nutritional point of view, and a very different thing to analyse it from a legal perspective. And it is precisely on this border that a fundamental game is played for those, like DKR, who are involved in designing, installing, and maintaining water treatment and distribution systems intended for the public.

The nutritional point of view: water as a pillar of life

From the perspective of nutritional science and biology, there is little doubt: water is a foodstuff. It's no coincidence that it's found in base of the food pyramide, symbolising its irreplaceable and fundamental role in the physiology of the human body. Its functions have been extensively studied and certified by the highest scientific authorities:

• The European Food Safety Authority (EFSA) has confirmed a direct relationship of cause and effect between daily water intake and the maintenance of normal physical and cognitive functions. Adequate hydration is essential for concentration, memory and physical performance.
• It is the main agent of thermoregulation, allowing the body to maintain a constant temperature through sweating and perspiration.
• It works as universal solvent and conveyor, transporting nutrients, hormones and oxygen to the cells and removing metabolic waste.
• It brings mineral salts, essential inorganic nutrients such as calcium, magnesium, potassium and sodium which, although they constitute a small part of body weight (about 6%), perform vital biological functions for bone health, muscle contraction and water-salt balance.

It is important to point out that drinking water is not our main source of minerals (it is estimated to contribute between 1% and 20% of the total requirement), a role primarily played by solid foods. However, its contribution is not negligible and its role as a ’carrier“ of these nutrients is undisputed. Biologically speaking, considering water as food is not only correct, it is a necessity.

The legal point of view: when water becomes “food”

If the science of nutrition is clear, the law draws a confine much sharper, specific and, in some ways, counter-intuitive. European legislation (EC Reg. 178/2002) and the corresponding Italian implementing legislation make a clear distinction between the legal framework relating to water and that relating to food. In general, and to avoid overlap, the’drinking water supplied by the aqueduct is not considered a foodstuff and follows its own specific and rigorous legislative framework (primarily Legislative Decree 31/2001, which transposes European Directive 98/83/EC).

However, there is one fundamental exception that completely changes the game. Water legally becomes a foodstuff when it undergoes two combined actions:

1. It is treated at the point of use (with filtration, refrigeration, and carbonation equipment).
2. It is supplied to the public in bulk, in jugs or in reusable bottles.

This is exactly the case with the Water Houses installed in municipalities, which provide microfiltered water to citizens, or professional dispensers installed in restaurants, bars, canteens and hotels. In this precise context, water ceases to be a simple good supplied by the public network and fully takes on the status of “food”, because an operator actively intervenes to modify its characteristics and supply it to third parties. This is where the concept of water as food becomes a legal and operational reality.

The obligations of the Food Business Operator (FBO)

This legal transformation has a very important consequence: whoever treats and supplies water to the public becomes, to all intents and purposes, a FBO (Food Business Operator). As such, it is no longer sufficient to ensure that the water complies with basic potability parameters, but is required to comply with a series of additional regulations designed to protect the health of the end consumer.

The main regulations involved are:

• DM 174/2004 supplemented by Legislative Decree 18/2024: regulates the suitability of materials and components of systems (pipes, fittings, filters) for contact with drinking water, ensuring they do not release harmful substances.
• DM 25/2012: defines the specific technical provisions for water treatment equipment, establishing performance and information requirements.
• Regulation (EC) No 852/2004: It is the core standard that requires the NSA to implement and maintain a self-monitoring system based on the principles of HACCP (Hazard Analysis and Critical Control Points).

Becoming an OSA for water as food translates into precise and non-delegable obligations:

• Drawing up a self-control plan (HACCP): a fundamental document that analyses the specific risks of your plant (e.g. bacterial contamination, filter wear) and establishes critical control points and procedures to monitor them.
• Planning planned maintenance: establish a schedule of periodic checks on the installations to ensure their correct and hygienic operation over time.
• Managing consumables: ensure the regular replacement of filter elements, UV lamps and other consumable components in accordance with the manufacturer's timetable, recording each intervention.
• Carry out periodic analyses: To programme water analysis at an accredited laboratory to continuously verify that the quality of the product supplied complies with legal parameters and that the treatment has not introduced any critical issues.

DKR, a strategic partner for the management of 'water food”

So, is water a foodstuff? The answer is: it depends. But for a local authority installing a Water House or for a restaurateur choosing a professional dispenser For its clients, the legal answer is a clear and unequivocal “yes”.

Understanding this distinction is not a mere exercise in style, but is fundamental to operating in full compliance, with security and professionalism. In DKR, our mission goes beyond providing state-of-the-art water treatment technology. We offer our customers the expertise and advice they need to address these regulatory complexities and properly manage water as food. Our support takes the form of helping define effective maintenance plans, providing clear documentation and guiding our partners to comply with all legal obligations, turning a potential bureaucratic burden into a solid guarantee of quality and safety for the end user. Managing water as food is a big responsibility, and we are here to share it.

L'articolo L’acqua come alimento? Una questione di prospettiva tra nutrizione e legge proviene da DKR.

Dry ice is a versatile and safe tool, provided that the risks are understood and correct operating procedures are followed. This comprehensive guide explains the three main hazards (cold burns, CO₂ build-up, and over-pressurisation), the correct handling methods with the necessary personal protective equipment, rules for safe storage and transport, and first aid procedures in case of accidental contact. With the right awareness and appropriate precautions, dry ice can be used with complete safety in professional and private settings.

The safety of dry ice is paramount: this material fascinates and amazes. Its iconic white mist and ability to cool instantly make it a powerful tool in many sectors, from logistics to catering.
However, its extreme temperature (-78.5°C) requires awareness and correct usage procedures. The answer to the question “Is dry ice dangerous?” is simple: no, if handled with knowledge and respect.
At DKR - Partner SIAD, safety is an integral part of the service: in addition to providing high quality dry ice, we share all the necessary information for safe and responsible use.

Dry ice safety: the main risks

Knowing the risks is the first step to avoiding them. The dangers of dry ice are three, all of them easily manageable with the right precautions.

1. Cold burns (cryogenic burns)

Dry ice is extremely cold and prolonged contact with the skin can cause a cold burn similar to that caused by a hot object.
A contact short and not prolonged, instead, does not entail significant risks, although the use of insulating gloves is always recommended.
To prevent any risk, avoid prolonged direct contact and use cryogenic gloves when handling.

2. Risk of asphyxiation due to accumulation of CO₂.

Dry ice does not melt but sublime, directly into carbon dioxide (CO₂) gas.
Since CO₂ is heavier than air, in environments closed and unventilated can replace oxygen, causing headaches or breathing difficulties.
The risk is insignificant in open or normally ventilated rooms, as warehouses or workshops.
It is therefore important to ensure good ventilation, especially in small rooms or during transport.

3. Risk of overpressure (sealed containers)

During sublimation, 1 kg of dry ice generates about 500 litres of CO₂ gas..
If stored in an airtight container (e.g. unventilated bottles, jars or freezers), the pressure may increase to the point of bursting the container.
Just in case, never seal completely dry ice: always use suitable, ventilated containers.

How to handle dry ice correctly

Personal Protective Equipment (PPE)

• Cryogenic glovesThey protect the hands from extreme cold and prevent contact burns. Do not use latex or kitchen gloves.
• Safety glassesrecommended if dry ice has to be broken up into smaller pieces to avoid fragmentation.
• Well-ventilated environment: essential to promote the dispersion of CO₂ during use.

Rules for storage and transport

Conservation

Store dry ice in insulating but not airtight containers, such as those in expanded polystyrene (EPS) o polyurethane.
These slow down sublimation but allow the gas to escape safely.
Never store it in a non-ventilated domestic freezer, as the temperature can damage the thermostat and the accumulated CO₂ can create pressure.
The ideal storage temperature is between -60°C and -80°C.

Transport

During transport, place the container in the load compartment or boot, avoiding direct contact with the passenger compartment.
Always guarantee a adequate ventilation, leaving one window ajar to allow for air exchange.

What to do in case of accidental contact

First aid for cold burns

• What to doTreat cold burn like a scald. Carefully remove any clothing or rings and immerse the affected part in lukewarm water (20-37°C) for 15-20 minutes.
• What not to doDo not rub the area, do not apply ice or direct heat.
• Consult a doctorif blisters appear or the skin becomes white or waxy.

Safe and conscious use with DKR - SIAD Partner

Dry ice is a extremely useful and safe tool if used consciously.
DKR - SIAD Partner supports its customers with quality products and clear instructions for responsible use, in full compliance with regulations and operational safety.

L'articolo Guida alla sicurezza del ghiaccio secco: rischi, manipolazione e conservazione proviene da DKR.

Summary

Dry ice is an innovative solution for the wine and food industries, where temperature control is essential to guarantee product quality. This material, consisting of solid CO₂ at -78.5 °C, offers greater cooling power than traditional ice and sublimates without leaving liquid residue.

In the wine industry, dry ice is used for cryomaceration during the grape harvest, protecting the grape must from oxidation and allowing for more selective extraction of aromas. In the food industry, it is used to maintain a stable temperature for doughs and meat products, preventing overheating and bacterial proliferation.

The product distributed by DKR, in partnership with SIAD, is certified for food use (E290) and comes for over 90% from renewable sources, resulting in carbon neutral. This sustainable solution also offers logistical advantages: it does not require electrical energy, extends shelf-life thanks to the bacteriostatic effect of CO₂, and is ideal for the transport of perishable foods.

DKR offers dry ice exclusively in pellets, with a scheduled delivery service ensuring constant availability and specialised technical support for all refrigeration.needs.

In the wine and food industry, temperature management is a decisive lever for the final quality of the product. Correct thermoregulation influences aroma, consistency, microbiological safety and durability. In this context, the dry ice for foodstuffs is an effective, natural and protocol-compliant solution HACCP, ideal for keeping the cold chain at every stage of production and logistics.

Produced with CO₂ certified food grade E290the dry ice distributed by DKR - SIAD Partner meets the strictest European food safety standards. The CO₂ used comes from controlled supply chains, in full compliance with purity, traceability and sustainability requirements.

Dry ice: specifications and applications

Temperature and characteristics of dry ice

Dry ice is solid carbon dioxide (CO₂) at -78,5 °C, capable of sublimating directly into gas without leaving liquid residue. This characteristic makes it ideal for applications where moisture can compromise product quality.

Thanks to its cooling power - approx. three times that of traditional ice - dry ice guarantees thermal autonomy even without electricity, with a duration variable depending on the insulation of the container and the quantity used.

Applications in oenology: cryomaceration

In the wine industry, dry ice is used during the cryomaceration, crucial phase that typically takes place between August and September, at the same time as the grape harvest. Added to the freshly harvested grapes, dry ice rapidly lowers the temperature and releases CO₂, creating an inert atmosphere that protects the must from oxidation and limits unwanted fermentation.

The combined effect of cold and saturation in CO₂ allows a’extraction more selective of aromas and polyphenols, This results in fresher and more stable wines over time, without resorting to additives or invasive treatments.

Temperature control of dough and meat products

In the food industry, dry ice is also widely used in the processing of dough and meat products, especially in the warmer months.

When mincing or mixing meat, dry ice prevents overheating, preventing fat melting and reducing bacterial growth.
In the bakery and in the patisserie, on the other hand, keeps the temperature of the dough stable, optimising the leavening process and improving the quality of the products, an effect that is particularly appreciated in summer or in highly productive workshops.

Cold chain and food logistics

For the transport of perishable foodstuffs, the dry ice is a versatile and sustainable resource. It leaves no liquid residue, requires no power supply and guarantees constant cooling, ideal for catering, refrigerated shipping and last-mile logistics.

The CO₂-saturated environment also exerts an effect bacteriostatic and fungistatic, helping to prolong the shelf-life of products and to keep their organoleptic characteristics intact.

Sustainability of dry ice used

La CO₂ provided by DKR - SIAD Partner comes entirely from biogenic sources or from recovery of industrial fumes.
Over the 90% comes from renewable sources and not from extraction wells. It is produced by processes of carbon capture e biogas upgrading, making it carbon neutral and particularly suited to realities that adopt environmental assessments of LCA (Life Cycle Assessment).

For more information:
SIAD Sustainability Report 2024 - page 45 (PDF)

Where to buy dry ice

DKR provides food-grade dry ice exclusively in pellets, the ideal format for wine, food and logistics applications.
The service of direct and scheduled delivery allows efficient management of seasonal consumption, guaranteeingconstant availability and a product that is always fresh.

Thanks to the collaboration with SIAD, a leading manufacturer and distributor of technical and food-grade gases, DKR offers a customised and timely service for all refrigeration, conservation and processing needs.

Rely on DKR means choosing a partner who combines certified quality, sustainability and technical expertise, supporting companies in the safe and conscious handling of cold.

L'articolo Ghiaccio secco per alimenti: applicazioni in enologia e nella termoregolazione dei processi alimentari proviene da DKR.

This article addresses the crucial issue of cleaning and sanitising in the food industry, a sector regulated by strict hygiene standards such as HACCP. It analyses the criticalities of traditional cleaning methods, which often involve risks of chemical contamination (e.g. caustic soda residues) and biological contamination (e.g. Listeria proliferation due to stagnant water). The article introduces dry ice cryopurification as an alternative and often complementary technological solution, illustrating how it ensures residue-free and water-free cleaning of food systems. The unique benefits of this technology, including the ability to sanitise surfaces, reduce total bacterial load (CBT) and eliminate the rinsing step, are illustrated, with a direct comparison to conventional methods. Finally, practical applications on machinery such as conveyor belts, ovens and packaging lines are described, positioning cryopolishing as the strategic choice for ensuring safety, efficiency and regulatory compliance.

In the food industry, hygiene is the often-invisible but fundamental link that connects the entire production chain to the safety of the end consumer. It is not an option or a negligible detail: it is the foundation upon which product quality, brand reputation, and compliance with increasingly strict regulations are built. Every surface, machine, and component that comes into contact with food must be not only visibly clean but also microbiologically safe. The challenge for every company in the sector is therefore to find a method of cleaning food plants that is both effective against the most stubborn dirt, efficient without compromising productivity and, above all, free of collateral risks.

Traditional solutions, based on the use of aggressive chemical agents and large quantities of water, although they have been the standard for decades, present intrinsic criticalities that modern technology can and must overcome. DKR cryogenic cleaning emerges as the answer to this need, offering a level of safety, speed, and performance unattainable with conventional methods.

The cleaning requirements in the food industry: the invisible enemy

Operating in the food sector means navigating a sea of regulations and protocols, including HACCP (Hazard Analysis and Critical Control Points). This system is not a simple manual, but a scientific and systematic approach that requires meticulous analysis of every stage of the process to identify, assess and manage potential hazards. When it comes to cleaning, the main risks are two, both insidious because they are invisible to the naked eye.

• Biological contamination: Organic residues on belts, mixers, hoppers or packaging lines are a welcome invitation for bacteria (such as Listeria, Salmonella, E. coli), yeasts and moulds. The formation of biofilms, a protective matrix created by micro-organisms, makes them even more resistant to traditional sanitisers. The heavy use of water during washing, if not followed by perfect and often lengthy drying, can paradoxically worsen the problem, favouring the proliferation of pathogens such as Listeria monocytogenes, which thrives in damp environments and in the presence of stagnant water.
• Chemical contamination: To combat stubborn dirt, industry makes extensive use of powerful detergents: alkaline ones like caustic soda to remove fats and proteins, acids to eliminate mineral residues and limescale, or sanitisers based on chlorine and quaternary ammonium compounds. Although effective, these products introduce a new risk. If the rinsing phase is not carried out with meticulous precision, chemical residues can remain on the surfaces and migrate into the final product during subsequent processing. This can not only alter the organoleptic properties (flavour, odour) of the food, but also represents a serious danger to the consumer's health, especially in cases of allergies or intolerances. It therefore becomes clear that true excellence is achieved only with residue-free cleaning of food machinery, a method that eliminates the danger at the root without introducing new ones.

DKR Cryopolysing: the safe choice for Food Safety

Cryogenic cleaning with dry ice It is a technology that revolutionises the very concept of industrial cleaning, with sanitising effects. The process uses food-grade carbon dioxide (CO2) pellets, the same gas used to carbonate drinks, brought to a solid state (-78.5°C). Projected onto the surface to be cleaned at high speed thanks to compressed air, they shatter contaminants through a triple effect: kinetic impact, thermal shock, and sublimation, meaning the transition from solid to gaseous state. For the food industry, its advantages are unique and definitive:

• Totally dry process, zero water: cryo-cleaning is, by its very nature, an anhydrous process. The CO2 pellets do not dissolve, but sublimate, passing directly from a solid to a gaseous state without leaving any trace of moisture. This advantage is monumental: it eliminates at root the risk of creating an environment favourable to the proliferation of bacteria such as Listeria and prevents the formation of lumps or moulds in machines that process powders such as flour and cocoa.
• Total absence of chemical residues: The cleaning agent is pure carbon dioxide. After performing its action, it dissolves into the atmosphere, leaving the surface perfectly clean, dry, and free from any chemical agents. This ensures food plant cleaning without caustic soda or other aggressive compounds, eliminating the risk of chemical contamination and making post-wash pH checks unnecessary.
• Intrinsic sanitising action: The thermal shock generated by the impact at -78.5°C not only makes dirt brittle and friable, but also has a powerful bacteriostatic effect. The drastic and instantaneous decrease in temperature breaks down the Total Bacterial Count (TBC) present on surfaces, sanitising the treated area and contributing significantly to the maintenance of the hygienic standards required by the strictest protocols.

A paradigm shift: operational confrontation

To understand the revolutionary impact of dry ice blasting, it's useful to compare the workflow of a traditional cleaning operation with that of the DKR method.

Practical applications: versatility in the service of production

The versatility of dry ice cleaning makes it ideal for a wide range of applications. For companies looking for a specialist partner in food facility cleaning in Milan and throughout Northern Italy, DKR offers targeted solutions and specialised interventions for

• Conveyor belts and chains (Teflon, steel, plastic): they thoroughly clean links, joints and rollers without having to dismantle them, crushing and removing organic residues, grease and biofilm.
• Baking ovens, tunnels and cooling spirals: effectively remove carbonised residues, fouled oils and greases, even on surfaces that are still hot, drastically reducing cooling times and the risk of fire.
• Packaging machinery, labelling and dosing machines: clean precision mechanisms, sensors, photocells and hot glue nozzles without risk of damage, thanks to a non-abrasive and non-conductive method.
• Silos, hoppers, kneaders and mixers they remove residues of flour, sugar, chocolate and other cooked or sticky ingredients, even in hard-to-reach places, preventing cross-contamination between different batches, especiallyor allergens.

Choose the DKR cryo-cleaning means taking a decisive step towards operational excellence. It is a strategic choice that guarantees maximum food safety, optimises production times, and ensures full compliance with the strictest regulations, positioning the company at the forefront of its sector and protecting its most important asset: consumer trust.

L'articolo Pulizia degli impianti alimentari: sicurezza e conformità senza residui chimici proviene da DKR.

Summary

The article announces DKR's participation in HostMilano 2025, framing the event as the epicentre of innovation for the Horeca sector. The text positions the company as a strategic partner capable of responding to modern demands for sustainability, efficiency, and service quality. The core of the article is a detailed presentation of two flagship solutions: the CBS system, which revolutionises bottled water management for hotels and restaurants through an automated washing and filling process, and the NCL dispenser, which enhances beverage offerings with still and sparkling water and juices, optimising service and reducing waste. The article concludes with an invitation to professionals to visit the DKR stand (Hall 18P, Stand K36) to discover these technologies firsthand and discuss their specific needs.

The world of hospitality has a beating heart that, every two years, beats in unison in Milan. This heart is HostMilano, the global fair dedicated to the catering and hospitality sector, an event that transcends a simple exhibition to become a true laboratory of the future. On this global stage, where ideas take shape and innovations become standards, DKR is proud to announce its second participation, a return that symbolises growth, consolidation and a clear vision for the future of the Horeca sector.

From 13 to 17 October, we invite you to join us at our stand at Fiera Milano Rho, Hall 18P, Stand K36, on a journey to discover how technology, design, and sustainability can converge to create excellent solutions.

HostMilano: much more than a trade fair, the epicentre of Horeca innovation

To fully understand the meaning of our presence, it is essential to understand what it is HostMilan. 

It is not simply a place where products are displayed, but an active international hub all year round, a privileged observatory that monitors the sector's supply chains, analyses consumption styles and anticipates trends. For five days, the Rho exhibition halls become the crossroads for professionals from all over the world: chefs, hoteliers, F&B managers, architects and consultants meet to define the next steps for the sector.

In this ever-changing scenario, DKR is not just an exhibitor, but a proactive partner. Our philosophy is founded on listening to market needs and translating them into concrete solutions. Today, the Horeca sector is moving along three fundamental lines: sustainability, operational efficiency, and customer experience (Guest Experience). Our participation in HostMilano 2023 was the practical demonstration how our technologies respond in a targeted manner to each of these challenges.

Our flagship solutions showcased: CBS and NCL

At our stand K36, the spotlight will be on two systems that embody our vision for a smarter and more responsible Horeca. These are not just machines, but true ecosystems designed to integrate seamlessly into the workflows of hotels, restaurants and hospitality facilities.

CBS (Cleaning and Bottling System): the sustainable revolution for bottled water

The problem: managing bottled water in a luxury hotel or high-end restaurant is a logistical, economic, and ecological challenge. Orders, storage, returns management, disposal, and transport costs represent a significant operational burden. Furthermore, the environmental impact of handling thousands of bottles is increasingly unsustainable in the eyes of a discerning clientele.

The DKR solution: our CBS system has been designed to fully internalise and automate this process. It is a compact, state-of-the-art plant that handles the washing, sanitising, filling, and capping of glass bottles. Connected to the water mains, the system treats local water through an advanced microfiltration process, tailored to the type of water being treated, guaranteeing a superior, zero-kilometre product with excellent organoleptic qualities.

How does the CBS system work?

The process is a virtuous cycle of efficiency and safety. The bottles used bottles are fed into the system, where they undergo a high-pressure, high-temperature washing cycle, followed by a rinsing phase to ensure maximum hygiene. Subsequently, the bottles are filled with microfiltered water (natural or sparkling) and capped, ready to be served again.

The concrete advantages of CBS:

• Environmental sustainability: eliminates the consumption of plastic bottles and drastically cuts CO2 emissions linked to water transport. It is a powerful green marketing tool to communicate the commitment of your facility.
• Operational efficiency: eliminates the need to handle complex orders, bulky warehouses and empty logistics. Staff can devote more time to customer service.
• Cost control: drastically reduces water procurement costs and optimises processes, ensuring a rapid return on investment.
• Quality and branding: offers the possibility to serve the highest quality water in custom bottles with the establishment's logo, reinforcing brand identity and improving the perception of luxury and attention to detail.

2. NCL: versatility that enhances the guest experience

The problem: hotel breakfast is the establishment's calling card, a crucial moment for the guest experience. Offering a wide choice of high-quality drinks can be complicated: juice cartons that oxidise, bottles that take up valuable buffet space, waste, and a presentation that isn't always optimal.

The DKR solution: the NCL machine It is the answer to this need for versatility and quality. It is a multi-function dispenser with an elegant and compact design, capable of serving not only cold, still, and sparkling water, but also a wide variety of fruit juices, both still and carbonated.

How does the NCL system work?

NCL uses high-quality juice concentrates, stored in bag-in-box containers, which are mixed with micro-filtered water at the point of dispense. This guarantees a consistently fresh product, at the ideal temperature, and with a constant taste. For carbonated drinks, the system mixes cold, freshly produced sparkling water with concentrated syrups from the most well-known brands (such as Coca-Cola or Pepsi), dispensed from kegs. The result is a consistently fresh, perfectly carbonated, and ready-to-serve beverage.

The concrete advantages of NCL:

• Improving the guest experience: Expand the buffet offering with innovative (like sparkling juices) and superior quality drinks, exceeding customer expectations.
• Optimisation of space and service: a single, elegant dispenser replaces dozens of bottles and bricks, freeing up space on the buffet and simplifying staff work.
• Waste reduction: On-demand delivery eliminates the problem of open and unused containers, drastically reducing food waste and associated costs.
• Hygiene and safety: the closed-loop system ensures maximum hygiene, avoiding contamination and maintaining product freshness.
• Flexibility: perfect for breakfast rooms, NCL is also ideal for lounges, conference centres, wellness areas and restaurants, offering a full, high-level beverage service throughout the day.

We look forward to seeing you at Pavilion 18P, Stand K36: an experience to be had.

We believe innovation should be experienced firsthand. That's why our stand at HostMilano won't be a simple display case, but an interactive space. We invite all industry professionals to visit us to:

• Attending demonstrations live of the operation of the CBS systems and NCL.
• Dialogue with our technical and commercial experts to analyse the specific needs of your business.
• Taste the quality of water and beverages provided by our facilities.
• Discover the design and build quality of our products.i, designed to last and enhance any environment.

HostMilano 2025 is our opportunity to reaffirm our commitment: to be not just suppliers, but strategic partners for the success of Horeca businesses. We look forward to showing you how, together, we can design a a more efficient, sustainable and excellence-oriented future.

L'articolo DKR a HostMilano 2025: Disegniamo il futuro dell’ospitalità, un erogatore alla volta proviene da DKR.

This article takes an in-depth look at the topic of injection and compression mould cleaning in the plastics industry. It begins by highlighting the significant limitations of traditional techniques (mechanical, chemical, ultrasonic), such as surface abrasion, the generation of polluting residues, long downtimes and operator safety risks. It then introduces cryogenic cleaning with dry ice as the superior technological solution, explaining in detail how it works based on kinetic effect, thermal shock and sublimation. The article demonstrates how this non-abrasive, residue-free method overcomes conventional criticalities point by point, enabling rapid cleaning directly in the machine. Finally, specific applications and strategic advantages of cryopolishing are outlined, positioning it as an essential investment to increase productivity, ensure quality and promote sustainability in the modern manufacturing environment.

La cleaning injection and compression moulds It is a critical and non-negotiable operation at the heart of the plastics manufacturing industry. The perfection of every single piece produced, from precision automotive components to medical devices, depends viscerally on the immaculate condition of the mould. Polymer residue, build-ups of release agents, oxidation, and other contaminants are not mere aesthetic imperfections; they are the direct cause of defects, scrap, dimensional tolerance alterations, and ultimately, economic and reputational losses.

For this reason, meticulous and regular maintenance is not an option, but a strategic necessity. However, conventional methodologies, while having been the backbone of the sector for decades, are increasingly showing their limitations in the face of the pressures of Industry 4.0, which demands speed, precision, sustainability and maximum efficiency. In this scenario, the cryogenic cleaning with dry ice offered by DKR stands out as a revolutionary technology, a breakthrough capable of redefining maintenance standards.

The challenges and limitations of traditional mould cleaning

Traditional techniques applied to the cleaning of injection and compression moulds involve a number of compromises that impact on cost, time and quality. Let us analyse them in detail:

• Mechanical methods (brushes, grinding wheels, sandblasting): These mechanical methods are often aggressive. Abrasion, even if minimal, can wear down mould surfaces over time, round off sharp edges essential for the part's design, and compromise mirror-polished finishes or complex textures. The risk of altering dimensional tolerances is real, especially in high-precision moulds.
• Chemical methods (caustic soda, alkaline detergents): Immersion in chemical baths can be effective, but it generates significant critical issues. Firstly, the creation of secondary residues: sludge and wastewater laden with chemicals must be treated and disposed of according to increasingly stringent environmental regulations, representing an operational cost and a bureaucratic burden. Secondly, the risk of corrosion: prolonged exposure to aggressive substances can affect the mould's metal, causing micro-pitting and reducing its useful life.
• Ultrasonic tanks: Although less aggressive than previous methods, they still require complete mould dismantling and the use of cleaning liquids, generating wastewater to be managed. Cleaning times can be long.
• Prolonged downtime: The common denominator of almost all these methods is the need to remove the mould from the press. This initiates a long and costly operational cycle: removal from the press, transportation to the washing area, cleaning, complete drying (fundamental to avoid moulding defects), reassembly and realignment. This process can take from several hours to an entire day, turning minutes of production into hours of downtime.
• Safety risks: The handling of caustic soda, solvents, and other chemical detergents exposes operators to health risks (burns, inhalation of toxic fumes), requiring strict safety procedures and the constant use of personal protective equipment.

DKR technology: cryogenic cleaning explained in detail

Cryogenic cleaning, or dry ice blasting is a sustainable, fast and effective process against dirt. It uses dry ice (solid CO2 at -78.5°C) pellets as a cleaning agent. These pellets are projected at high speed via a stream of compressed air onto the surface to be treated. Its effectiveness does not derive from abrasion, but from a powerful combination of three physical phenomena:

• Thermal shock: The extremely low temperature impact of dry ice causes instant cooling of the contaminant. This thermal shock makes it extremely brittle and causes it to contract, creating micro-fractures and weakening its adhesion to the metallic surface of the mould.
• Sublimation: This is the principle that makes the technology unique. Upon contact with the surface, the dry ice pellets sublimate, meaning they pass from a solid to a gaseous state (there is no liquid phase). This phase change involves a volume expansion of approximately 800 times. The effect is that of thousands of non-abrasive “micro-explosions” occurring beneath the contaminant layer, lifting and detaching it from the surface cleanly and definitively.
• Kinetic effect: the combination of dry ice pellets and compressed air remove the contaminant that typically falls to the ground (it may be useful to mask the work area for solidified contaminant removal).

The concrete advantages of cryopolysing for injection and compression mould cleaning

When this technology is applied to the world of moulding, the benefits are immediate and measurable, overcoming all the criticalities of traditional methods.

• Quality and precision without compromise: As a non-abrasive method, cryo-cleaning is absolutely safe on any surface. It cleans perfectly without altering surface finishes, mirror polishes, textures, sharp edges, engraved logos or dimensional tolerances. This makes it the preferred choice for cleaning high-precision injection and compression moulds, such as those used in the medical, optical or electronic sectors.
• Total elimination of secondary residues: the sublimation of CO2 meaning there is no cleaning agent to dispose of. The only waste material is the original contaminant, which falls to the floor as dry dust and can simply be vacuumed or swept away. This completely eliminates the costs and complexities associated with the disposal of wastewater, solvents, or sand. The correct cleaning of injection and compression moulds thus becomes a sustainable process.
• Drastic reduction in downtime: This is perhaps the most revolutionary advantage. Cryo-cleaning can be performed directly on the machine, with the mould fitted to the press and often still hot (the mould's heat, in fact, accelerates sublimation and increases the effectiveness of the process). The hours spent on dismantling, transporting, and reassembling are completely eliminated. An injection and compression mould cleaning operation that previously took half a day can be completed in less than an hour, maximising OEE (Overall Equipment Effectiveness) and productivity.
• Safety and environmental sustainability: The process does not use harmful chemicals, solvents or detergents. It is a non-toxic, non-flammable, non-conductive and safe method. This radically improves the working environment, reduces risks for operators and aligns the company with increasingly demanded sustainability standards, using biogenic CO2, i.e. recovered from anaerobic fermentation processes that do not add new greenhouse gases to the atmosphere.

A strategic choice for competitiveness

Choosing cryogenic cleaning DKR For the maintenance and cleaning of injection and compression moulds, it is not simply a technical upgrade but a strategic investment with a measurable return. It means reducing direct (disposal) and indirect (machine downtime) operational costs, increasing actual production hours, ensuring consistent and repeatable quality of moulded parts, and adopting a sustainable and safe process. In a global market where competitiveness is decided in cents and minutes, efficiency is not an option: cryo-cleaning is the answer to bring it to the highest levels.

L'articolo Pulizia stampi a iniezione e compressione: la soluzione efficace e senza residui con ghiaccio secco proviene da DKR.

There are experiences that begin for work and then, almost without realising it, go beyond. They become a memory, an emotion, the feeling of having been part of something great. Like DKR, a company specialising in Water dispenser production for water houses, Horeca sector, offices and schools, We know very well that proper hydration is the fuel behind every great performance. For this reason, when we had the pleasure and honour of being the technical suppliers for the Powerchair Hockey Tournament, organised by the ASD Skorpions Varese club, we immediately understood that it would be a special adventure.

A collaboration that began almost by chance, during a meeting at a trade fair, and grew thanks to the passion of people like Fabio Mantiero, Vice President and athlete, and his mother, Mrs Paola Mazzucchelli, the bedrock of the organisation.

The Varese Skorpions: a history of excellence and determination and the meeting with DKR

For those not familiar with them, the Skorpions Varese We are much more than a team: we are the only Powerchair Hockey club in the province of Varese. Founded in 2003 from the vision of Claudio Carelli and carried forward today by his son Giordano, the team's President, we are a symbol of how passion can overcome any obstacle.

It's no coincidence that they are Italy's most decorated team, many of their athletes have worn the national colours, and in 2021 they received the Bronze Star for Sporting Merit from the Italian Paralympic Committee. A list of achievements that speaks for itself.

A weekend in Besnate: an account of an unexpected emotion

Our sales representative Stefano visited the Besnate gym on the last weekend of August, initially with a dual objective: to ensure our water dispensers provided optimal hydration for athletes and the public, and to satisfy a personal curiosity about a sport he didn't know. What he found went far beyond all expectations.

But what is the Powerchair Hockey? It is a dynamic and strategic discipline where five players per team compete on electronic wheelchairs. Each athlete has a floorball bat, but the real genius lies in the T-stick, a tool that allows those with reduced or no function in their upper limbs to play, making the sport truly inclusive.

The tournament was of international calibre, with 8 absolutely top-tier teams: in addition to the hosts, Skorpions Varese, there were the Belgian champions, APHC Antwerp, the Cyber Falcons from Switzerland, the Spanish champions, Dracs CEA, the New Cavaliers Prague from the Czech Republic, Upward Arnhem from Holland, and even Power Hockey Canada.

“I arrived just as they were about to play the match for third and fourth place,” recounts Stefano, “which pitted the Skorpions against the Spanish team, the Dracs Cea. It was an incredible match. When it looked over, the Spanish scored a very important goal that took the teams to a Golden Goal, where they ultimately came out on top.”

But the best moment, the one that defines the spirit of the event, came after the final whistle. “Despite the competitive fervor and the tension of the moment,” Stefano continues, “the players shook hands and the faces contorted with effort melted into a collective smile. Winning is important, but putting on a show like that was even more so.”

Stadium cheering and a sense of community with DKR

Making everything even more magical was the crowd. “I was literally taken aback,” admits Stefano. “Chants, songs, constant cheering to push the athletes to give their all. In comparison, San Siro can only offer applause. There was an atmosphere of celebration, of community, that reminded me of the days at the oratory during big events. I knew almost no one, yet I immediately felt part of something.”

In DKR, our work is not just about providing high-quality water dispensing systems, but also about promoting values of sustainability and community, as demonstrated by our participation in “Do the right thing!’. Seeing our facilities at the centre of an event with such great human and competitive value was the perfect summary of our commitment. Providing the simplest yet most essential element – excellent water for hydration – to these extraordinary athletes, a tireless staff, and such a warm audience reminded us why we do what we do.

We are proud to have played our part and we hope that this discipline will continue to grow and make a name for itself, because it deserves to. And we will be happy to continue supporting those who, like the Varese Skorpions, turn sport into a life lesson for everyone.

L'articolo DKR e gli Skorpions Varese: quando lo sport è pura passione e unisce tutti proviene da DKR.

Supply system: the importance of a conscious choice

Let's start from a fundamental and indisputable premise: the water that arrives in our homes through the public water network is potable and complies with strict legal parameters, constantly monitored by health authorities. However, its journey doesn't end at the meter. The internal pipes of a block of flats or a house, especially if old, can sometimes alter its organoleptic characteristics, such as taste or smell, or release small particles of sediment.

Furthermore, the chlorine disinfection treatment, essential for ensuring microbiological safety throughout the network, can leave a residual taste that not everyone appreciates. This is where the end consumer's choice comes into play: deciding whether and how to improve their home water to make it more palatable and perfectly suited to their habits.

How to assess your needs: the first step

Before evaluating any delivery system, the crucial step is knowing one's water. The information is public and easily accessible. Periodic analyses can be consulted on the websites of your local council or the water utility company. By reading these reports, you can find important values such as:

• Hardness (°f): indicates the concentration of calcium and magnesium salts, which are responsible for limescale.
• Fixed residue at 180°C: It measures the total content of dissolved minerals.
• pH: Indicate whether the water is acidic, neutral, or alkaline.
• Residual chlorine: the amount of disinfectant present at the point of dispensing.

With this data to hand, and having consulted with a professional in the field, you can begin to outline the profile of the ideal treatment system. Do you only want to eliminate the taste of chlorine? Or do you prefer softer water with fewer minerals? The answers to these questions will guide you towards the right technology.

The main types of domestic installations: a detailed overview

The market offers several technologies. Let's look at the main ones, with their pros and cons.

• Active carbon filtration systems: I am the simplest and most widespread solution. It exploits the principle of adsorption: activated carbon, thanks to its porous surface, retains chlorine, its derivatives and other organic substances responsible for unpleasant odours and tastes. It is perfect for those who have good quality water and just want to improve its taste. It does not alter the mineral content and is not effective against limescale.
• Microfiltration plants: This system uses membranes with pores of micrometric dimensions (typically between 0.5 and 1 micron). It is a step up from carbon filtration, as in addition to improving taste, it offers a physical barrier against suspended particles such as rust, sand, and some larger bacteria. It is an excellent compromise for safer and more pleasant water.
• Ultrafiltration systems: Ultrafiltration membranes have even smaller pores (approximately 0.01 microns), capable of blocking bacteria, viruses, and other macromolecules. It is an excellent choice for those seeking a high degree of microbiological safety without altering the saline composition of the water. Beneficial minerals, in fact, pass through the membrane.
• Reverse osmosis: represents the most advanced level of domestic filtration. Via a semi-permeable membrane and the application of pressure, this system almost completely separates water from mineral salts, heavy metals, pollutants, and microorganisms. The water produced is very light. It should be considered that the process discards a certain amount of water (the “concentrate”) and that the resulting water, being demineralised, is often “remineralised” by special filters to balance its flavour and pH, or it is mixed with raw water that has not passed through osmosis to achieve an acceptable level of minerals for consumption.
• Gassed dispensers: Many modern systems, regardless of the filtration technology used, can be fitted with a carbonator. Connected to a food-grade CO2 cylinder, this device allows you to have cold sparkling water directly from the tap, with the desired level of fizz.

The economic and environmental benefits

Installing a good domestic dispensing system is an investment that pays for itself over time. From economic point of view, the cost per litre of treated water is negligible compared to that of bottled water. A family of four can save several hundred euros a year, quickly recovering the initial outlay.

The environmental impact is perhaps the biggest benefit. It completely eliminates the need to buy, transport, and dispose of heavy loads of plastic bottles. This means less plastic production, fewer CO2 emissions from logistics, and less waste to manage.

Maintenance and service: key factors for durability and safety

A crucial aspect, often underestimated, is the maintenance. Any dispensing system needs periodic maintenance in order to function correctly and safely. Regular replacement of filters according to the manufacturer's instructions is essential: an exhausted filter not only loses its effectiveness, but can become a breeding ground for bacteria. Our experience at DKR has taught us that structured and professional service is what makes the difference in the long run, ensuring that each dispensing system maintains its performance and safety over the years.

Beware of scams: how to recognise dubious sellers

Unfortunately, the sector is not exempt from unfair commercial practices. Always be wary of those who promise “miraculous waters” they carry out “scientific” demonstrations at home to frighten you. The most common test is electrolysis: by immersing two electrodes in a glass of tap water, it becomes dark and cloudy. This is not “hidden dirt”, but a normal electrochemical reaction that precipitates the (harmless and natural) mineral salts present in the water. The same test, carried out on distilled or reverse osmosis water (free of minerals), will not produce any effect. A serious professional does not use these tricks, but relies on objective data such as water board analyses to recommend a supply system.

An investment in health and the planet

Choosing the most suitable domestic supply system is an important decision that requires information and awareness. There is no universal solution, but rather a tailor-made solution for every family, based on the quality of the source water and your own consumption habits.

As DKR, with our thirty years of experience, we remain at your disposal to guide consumers in this choice, offering professional advice and tailored solutions. The aim is to ensure that every family can to enjoy excellent waterand with full respect for the environment and maximum convenience. Choosing the right domestic system means investing today in the health and future of our planet.

L'articolo Impianto di erogazione ad uso domestico: quale scegliere per le proprie esigenze? proviene da DKR.