Sectors

Food Waste Disposal for Hospitals

Hospitals are among the UK's largest producers of food waste, and now face strict statutory deadlines for how it's separated, stored and disposed of, alongside infection control requirements, budget constraints, and the need for uninterrupted kitchen operation around the clock.

The Eco-Smart Food Waste Dryer addresses all of this at the point food waste is produced. It separates and dries waste on site, meets current UK regulations without new drainage infrastructure, and removes the odour and vermin risks that come with storing wet waste. It's already in use across more than 20 NHS trusts, helping hospitals lower disposal costs, meet sustainability targets, and maintain the safe, reliable environments patient care depends on.

Portrait of little boy having healthy food in hospital bed

Meet UK regulations

Hospitals are among the largest producers of food waste. In the UK it is illegal to use macerators or waste-to-water machines to pump food waste into the drain system. The food waste dryer is therefore an ideal solution.

Eliminate vermin risks

Drying food waste overnight is the hygienic answer to food waste disposal, particularly important in a hospital environment. It avoids drain blockages and eliminates risks from vermin from wet food waste rotting in bins and compactors.

Reduce waste volume

The dryer is already in use in NHS hospitals. It reduces the wet food waste into a dry, sterile powder, 15 -20% of its original weight and volume. The number of bins is reduced by 80%, lowering disposal costs and minimizing manual handling risks moving heavy wheelie bins.

Hospital Food Waste Regulations

Hospitals now face several statutory deadlines for food waste handling, with non-compliant methods being phased out on a fixed timetable.

Regulation	Region	Date	What it means for hospitals
Environment Act 2021 – Simpler Recycling	England	In force since 31 March 2025	Food waste must be separated from dry recyclables and residual waste at source
Waste Separation Requirements (Wales) Regulations 2023	Wales	Hospitals in scope from 6 April 2026	The same separation duty already covering Welsh workplaces extends to hospitals
Digital Waste Tracking Regulations 2026 (Phase 1)	England, Wales, Northern Ireland	Mandatory from 1 October 2026	Waste movements, weights and treatment outcomes must be recorded digitally (Scotland follows from January 2027)
HTM 07-01 – Safe Management of Healthcare Waste	UK-wide	Ongoing NHS estates guidance	Food and municipal waste must be segregated from clinical waste streams

On-site drying supports all four requirements without new drainage infrastructure: food waste is separated and dried in a sealed unit at the point it's produced, never enters the drain system, and produces a weighed, loggable output that fits directly into digital waste tracking records.

How Much Food Waste Does a Hospital Produce?

The answer depends on the type of hospital and whether food is prepared on site. Our experience is that acute hospitals with their own preparation kitchens create the most food waste per patient at between 140kg to 220kg per bed, per annum. Where preparation is done off-site via ‘cook-freeze’ or ‘regen’ processes, the weight of food waste can be 60% of this weight. This is because preparation waste is located elsewhere in the supply chain.

Our advice to all catering managers and estates departments that currently use wheelie bins, macerators or waste-to-water systems, is to weigh food waste each day for one week before it is disposed. Our experience is that guessing the overall weight based on the number of bins will not be accurate enough. You will need to know the peak days in the week to choose the right model. Typically, this produces much higher weights than expected.

Which Food Waste Dryer Is Right For My Hospital?

Knowing the weight of food waste produced daily is key to deciding which model of food waste dryer is right for your operation. For example, the ES150 has a maximum capacity of 100kg per day. If your weight is close to this or peaks above this the you should consider a larger unit or splitting the volume across two smaller units.

Another consideration is the kitchen operational hours. The drying cycle is typically 13-16 hours depending on how full it was at the start of the cycle. Most hospitals want to load new food waste as it is produced so having two smaller units will allow one unit to be drying, while the other is loaded. For example, a kitchen that produces 150kg per day could choose one ES300 unit (maximum load 200kg). If the machine is loaded and switched on at 7pm, it would be ready to empty (lasting approximately 15 minutes) at approximately 10am.

Alternatively, they could choose two ES150 models (100kg maximum each) and use one unit for breakfast and lunch waste, starting the cycle at 2pm. This cycle would finish around 5am, ready to be emptied and be available for loading as soon as the kitchen opens. The other unit could take the afternoon and dinner waste, being switched on at say 9pm. This cycle would finish around 12 noon, ready to receive the afternoon waste.

A Word on Alternative Technologies Available

Many hospitals in England are still using macerators/waste disposal units. This technology is illegal as of March 2025 and legislation dictates that technology needs to be replaced. The alternative choice therefore lies between waste-to-water units, grey water slurry tanks, wheelie bins or drying the food waste.

Waste-to-water units use enzymes and a flow of hot water to liquidize food waste. They are banned in NI, Scotland and Wales as they are deemed still to be putting food waste into the drains. They also use large volumes of water, up to 600L per hour in some cases.

Grey water systems require the installation of pipework from the macerator to a holding tank outside the building. No food waste goes into the drain but the installation is expensive, typically well in excess of £100,000. The tank must be emptied regularly, often once a week at high cost using a special tanker vehicle. The slurry goes to anaerobic digestion and therefore is recycled but the infrastructure and ongoing tank-emptying costs are high.

Wheelie bins are likely the most popular option and are frequently used as a back up when macerators break down. Their main drawback is the requirement to empty them very frequently, maybe even daily in order to minimize vermin risks. They are also very heavy when full, creating manual handling risks. Charges are based on an average weight, whether or not the bin is full and since food waste is 80% water, you are paying to have water removed. A food waste dryer removes that water so the weight is only the solid element, thereby reducing the cost significantly.

Food Waste Dryer Models

The Eco-Smart Food Waste Dryer is made from high specification stainless steel. All units are have locking castors so can be pushed into position. All you need is a power supply nearby and a standard sink drain (see Installation and Commissioning). It is easy to use, with simple on/off and discharge buttons and high specification RFID interlock sensors. Just load the food waste, close the lid and press the start button - the process is automatic.

ES30

Up to 20kg per day

ES60

Up to 40kg per day

ES80

Up to 50kg per day

ES150

Up to 100kg per day

ES300

Up to 200kg per day

ES500

Up to 350kg per day

Frequently Asked Questions

How much food waste does a hospital produce, and what size dryer do I need?

Acute hospitals with their own preparation kitchens typically produce between 140kg and 220kg of food waste per bed per year. Sites using 'cook-freeze' or 'regen' catering can produce around 60% of this. We recommend weighing your food waste daily for one week to identify peak days before choosing a model — guessing from bin counts is usually inaccurate. Our range covers 20kg per day (ES30) up to 350kg per day (ES500).

Is a food waste dryer compliant with current UK food waste regulations?

Yes. The Eco-Smart Food Waste Dryer supports the Environment Act 2021 separation duty (in force in England since 31 March 2025), the Waste Separation Requirements (Wales) Regulations 2023 (extending to hospitals from 6 April 2026), and the incoming Digital Waste Tracking Regulations (mandatory UK-wide from 1 October 2026), since every cycle produces a weighed, loggable output.

Can a food waste dryer replace a macerator or waste-to-water system?

Yes. Macerators and waste-to-water units discharge food waste, in liquid or solid form, into the drain system. The Eco-Smart Food Waste Dryer never discharges into drains: it dries waste on site into a sterile, dry powder that is 15–20% of its original weight and volume, ready for collection.

What are the installation requirements for a hospital kitchen?

Each unit needs a nearby power supply (3-phase, 415V, 32A on the ES150) and a standard floor or PVC sink drain within 2 metres. Units are mounted on locking castors so they can be positioned without structural work, and a typical drying cycle runs 13–20 hours depending on load size.

How does this support hospital hygiene and infection control?

Drying food waste overnight removes the moisture that attracts vermin and causes odour in bins and compactors, which matters most in clinical environments. It also reduces the number of food waste bins in circulation by around 80%, cutting manual handling risk for staff moving heavy wheelie bins.