
How a Bristol community eliminated commercial waste fees turning 4.5 tonnes of food scraps into rich compost in 6 weeks with a Biolan hot composter
Every week, cafés, community centres and schools throw away hundreds of kilograms of food waste that could instead become valuable compost. This case study shows how The Ardagh Community Trust in Bristol used the Biolan Quick Composter 500 to eliminate commercial food waste collections, process around 4.5 tonnes of organic waste each year and recover their investment in approximately six months.
The Ardagh Community Centre in Bristol is a vibrant, community-inclusive hub complete with a bustling café, a forest school, and host for events. Generating large amounts of catering and food waste every week, they needed a long-term, dependable solution. We recently sat down with Chrissie Storry (the Centre’s CEO) and Richard Wardle (a passionate onsite volunteer gardener) to see exactly how their new Biolan Quick Thermo-Composter 500L has completely turned the tide on their waste management, saved them serious cash, paid for their investment within 6 months and energised their community garden.
Before their recent upgrade, the Ardagh Centre relied on a commercial food waste collection service. They actually had an older, donated 500L composter on site, but Richard affectionately called it their "slow unit" - it just lacked the advanced efficiency and thermal capacity needed to process everything. As a result, half of their kitchen waste still had to be shipped offsite at a high commercial premium.
The centre's traditional open composts couldn't keep up with the volume of food waste and staff knew an upgrade was needed.
Manufactured in Finland, the insulated body helps maintain the conditions needed for composting throughout the year, even during cold UK winters.
The unit is designed to process food waste from cafés, community centres and similar environments, including cooked food, pastries and coffee grounds.
Its sealed construction helps prevent unwanted pests, making it suitable for public-facing sites.
The 500-litre capacity makes it suitable for organisations generating significant volumes of organic waste.
To take control of 100% of their food waste, the centre added a new Biolan 500L insulated hot composter to process their food waste on site. Chrissie’s first impressions? "Super easy to set up - it practically unpacked itself!"
But how does it handle so much food waste without breaking a sweat? The secret lies in its patented airflow system and engineering:
Self-Regulating Static Ventilation: By feeding oxygen directly into the core of the waste mass via static ventilation channels, the unit naturally sustains hot, aerobic decomposition.
No Manual Turning Required: This continuous, self-regulating airflow eliminates the need for users to manually turn or churn heavy catering waste, keeping internal bacteria active year-round with minimal maintenance.
To feed their new "workhorse," the kitchen staff set up a brilliant two-bin segregation system to streamline things from the start:
The Coffee Bin: Collected separately for an ingenious horticultural trick.
Food Waste Bins (x2): For all other café and kitchen leftovers, including heavy items like pastries, cakes, croissants, and even meat scraps.
To get the perfect balance of "greens" (nitrogen-rich food) and "browns" (carbon-rich materials), the garden team started using the starter bag of bulking material provided but quickly found that onsite materials such as bark falling naturally from the centre’s own giant redwood tree, proved equally effective.
Richard also integrates ‘Composter feeding’ into his weekly weeding routine. Because the Biolan composter reaches temperatures between 40°C and 60°C, he can throw in invasive perennial weeds and thistles, knowing the intense heat will completely obliterate them before they can spread back into the garden soil.

Yes. By shifting all food waste processing onsite, the Ardagh Centre completely cancelled their commercial waste collection contract. As CEO Chrissie Storry puts it:
(note: within 6 months).
Food waste decomposes so rapidly due to internal bacterial heat that it becomes unrecognisable within 48 hours. It takes just six weeks or less to transform raw kitchen scraps into a rich, mature topsoil compost.
No. Traditional anaerobic systems (no airflow) produce foul odours, but because the Biolan 500L utilises clean aerobic breakdown (airflow), there are no bad smells. The resulting product smells sweet and pleasant, likened by the team to sand - making it perfect for public-facing community environments.

This insulated composter processes 4.5 tonnes of waste per year on this site.
Yes the insulated body of the composter allows for all year round composting
Yes, The Ardagh Centre in Bristiol is a perfect example of how the quick composter unit working for them, showing commercial composting is entirely possible.
Yes the unit is designed for community settings such as schools or use by several households at once.
There are lots of natural materials you can use such as dried leaves, untreated wood chips and shredded cardboard, but you can also use shop bought bulking materials that are balanced for your hot composter such as Biolan's peat free bulking materials
Harvesting the finished product is incredibly simple. The matured compost is easily accessed and extracted from a large, designed lower hatch, requiring no strenuous lifting, turning, or awkward digging.
Today, the Biolan 500L Hot composter processes roughly 4.5 tonnes s of food waste per year. That represents a significant reduction in food waste requiring off-site collection and transport, while producing a valuable compost resource for use within the community
The finished compost looks exactly like a premium bag of sand you’d buy from a garden centre. Because the Ardagh Centre sits on an extension of the area’s chalky downs, their soil is naturally highly alkaline. Richard uses those highly acidic separated coffee grounds to perfectly balance the soil around the site’s rhododendrons and azaleas. The rest of the rich compost is used by the community plant nursery, mixed into organic potting soils, and spread around the base of trees.
The team is even brainstorming future innovations: seeing how much pure thermal energy radiates from the unit, they are considering running a pipe from the hot composter straight into their greenhouse to help heat it naturally during the freezing winter months!
Spreading the Passion
For Chrissie - a local resident who used to simply walk her Black Labrador on the property - the composter has become a symbol of community pride. The centre serves as a vital sanctuary to combat social isolation, hosting forest schools, Tai Chi, and other supportive groups for local residents.
To ensure the long-term sustainability of the project, they are currently training two more community members to become specialised compost handlers. Richard’s personal passion is officially being passed down to the next generation of site stewards.
When we asked Chrissie to describe the Biolan 500L in three words, she didn't hesitate:
The Biolan quick composter 500L may be suitable for:
✓ Schools
✓ Community cafés
✓ Visitor attractions
✓ Garden centres
✓ Campsites
✓ Small restaurants
✓ Allotments
✓ Community gardens
Want to see how a Biolan Hot Composter can eliminate your commercial waste fees, lower your carbon footprint, and supercharge your soil? Check out our full range at Plastic Sol or get in touch with our team today!
You can also talk directly to the Ardagh Centre about their real-world experience, and can reach them at hello@theardagh.com
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How a Bristol community eliminated commercial waste fees turning 4.5 tonnes of food scraps into rich compost in 6 weeks with a Biolan hot composter
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