Composting for schools

Eco-friendly food waste composting for Schools & Colleges

School children adding food waste to Ridan composter

  • It’s fun
  • It’s educational
  • It’s cost effective
  • Eco friendly
Recycling food waste produced by schools and colleges with a Ridan composter is not just an environmentally practical solution to an ongoing problem, it is also a fantastic way to educate pupils about composting and recycling; providing them with hands-on experience of sustainable living. All raw and cooked food waste can be composted using a Ridan food waste composting machine – fruits, vegetables, meat, eggs, fish and dairy products . So long as school has some gardens or grounds, you can recycle all of your food waste onsite, as soon as it has been discarded.
Schoolchildren with Ridan Composting Machine

How to recycle your school food waste

Ridan Composter arrives at SchoolIt is now possible to recycle all common school waste products. What’s more, food waste (and all green waste such as grass clippings etc) can now be recycled on-site, without producing any environmentally damaging emissions in a Ridan food waste recycling machine.The compost produced by the Ridan can then be used to enrich the school soil – allowing carbon consuming plants to be grown. It’s win win situation for both the school and the environment. We offer a range of three Ridan Food Waste Composting Machines, to accommodate schools and colleges of all sizes.The best way to decide which size of Ridan you need is to measure how many litres of food waste are produced by your school each week;


What size composter do I need?


Specifications The Small RidanThe Medium RidanThe Large Ridan
Maximum Throughput 80 Litres per week 200 Litres per week 400 Litres per week
Unit Dimensions (meters)2.1L x 1.0W x 1.4H2.4L x 1.0W x 1.5H2.5L x 1.0W x1.6H
Unit Weight (empty)50Kg60Kg70Kg
Price of Ridan £2250 plus vat £2950 plus vat £3650 plus vat
Maturation Boxes1 @ £360 plus vat2 @ £360 each plus vat3 @ £360 each plus vat


What if I don’t know how much waste my school produces?

If you’re not sure how many litres of food waste you’re discarding each week, here’s a general guide:

Of course, please remember that other factors need to be considered too, such as:

  • How efficient are the school/college kitchens?
  • How much fresh produce is prepared on site compared to how much is bought in?
  • What sort of foods are being thrown away? Vegetable matter, fruit and greens compost easily and quickly, but meat eggs and dairy take longer.

food waste composting at Stowford Primary School Ivybridge Devon

I am amazed at how well the Ridan works, how easy it is to use and how quickly it composts, as a result we now only have one bin collected every week instead of two and we have plenty of rich compost for the garden

Wayne Hack Stowford Primary School, Ivybridge, Devon

How long does compost need to mature before using on the garden?

Compost maturation period

The fresh and nutritious compost that emerges from the Ridan should be matured for 2-3 months before being used on the garden. Whilst maturing, the compost needs to be stored in a suitable maturation bin, such as the Ridan Maturation Box.Usually these bins are used in pairs – one to be filled daily, and the other full and left to mature. Once the full bin has been harvested, simply swap the two around.

Further information

Devon County Council Food Composting Projects

Devon County Council have pioneered eco-friendly school food waste recycling projects throughout the county. The Compost Schools Special has been published by the DCC to help other schools across the UK.

For more fantastic information and advice, please see: The Zone

Risk assessments, guidelines and teaching resource for schools

For risk assessments, guidelines and interpretation boards for installing a Ridan at your school or college, take a look at this school page

For teaching resources to help educate your students about food waste recycling and composting, see

Further resources

Eco Schools, Food For Life and Garden Organic are all enthusiastic campaigners for composting school food waste.

So do your bit for our planet; get your school to recycle their food waste in the most environmentally friendly way by installing a Ridan Composting system.

Start Recycling the Eco Way!

Your school can recycle their food waste in the most environmentally friendly way, install a Ridan Composting system. Landscore Primary in Devon did just that have a look at this press cutting:

School Food Waste Recycling

Help our friends at Food For Life –
For all Food for Life and Soil Association members who buy a Ridan, we will donate 10% of the sale cost to Food for Life because we love what they do!food for life

Food for Life brings schools, nurseries, hospitals and care homes, and their surrounding communities together around the core ethos of healthy, tasty and sustainable food. The programme is about more than just food on the plate; it considers where food comes from and how it’s produced, cooked and experienced.

The Food for Life School Award supports schools to take a whole school approach that sees them grow their own food; organise trips to farms; source food from local producers; set up school farmers’ markets; hold community food events; provide cooking and growing clubs for pupils and their families; serve freshly prepared, well-sourced meals and provide an attractive dining environment so lunchtimes are a positive feature of the school day. Find out more here: