Best Composters — 100L + Recycled plastic (2026)
1 composters matching capacity “100L” + material “Recycled plastic”, hand-picked from UK Amazon listings.
Not sure which one to pick? Read our Best Compost Bin UK (2026) guide.
#1 Pick
Wormcity Wormery 4 Composting Trays (100 Litre), UK Made- Recycled plastic
- Small gardens
- 100L
£110.00
Pros
- Includes worms, coir bedding and worm food to start immediately
- UK-manufactured from recycled plastic
- Produces liquid feed and rich vermicompost
Cons
- Needs more hands-on management than a static bin
These robust 100L recycled plastic composters are ideal for gardeners looking to manage their kitchen and garden waste effectively. Constructed from durable, weather-resistant recycled polyethylene, they’re built to withstand the elements and provide years of reliable composting performance. This capacity is perfect for families regularly generating food scraps and leaves, offering a substantial volume without taking up excessive space in your outdoor area.
The use of recycled plastic significantly reduces environmental impact, aligning with sustainable gardening practices. The dark colour helps retain heat, accelerating decomposition – particularly beneficial during cooler months. They’re designed to be easy to assemble and maintain, contributing to a simpler composting experience for all levels of gardeners.
FAQ
What exactly is recycled plastic?
The composters are made from polyethylene (PE) derived from post-consumer recycled plastic bottles. This means the material was previously used as another product, reducing reliance on virgin plastics and minimizing waste.
How much waste can a 100L composter hold?
A 100L composter can typically hold around 60-80kg of organic waste depending on the size and type of materials added. This includes food scraps, vegetable peelings, tea bags, coffee grounds, and small amounts of garden clippings.
How quickly does composting happen in this composter?
Composting rates vary based on factors like temperature, moisture levels, and the ratio of ‘greens’ (nitrogen-rich) to ‘browns’ (carbon-rich) materials. With regular turning and proper balancing, you can expect finished compost within 6-12 months.
Do I need to add anything else besides food waste?
Adding ‘brown’ materials like shredded cardboard, dried leaves, or wood chips is crucial for balanced composting. These provide carbon which helps fuel the decomposition process and prevents a slimy build-up.
Can I compost meat or dairy in this composter?
It's generally not recommended to compost meat or dairy products within a home composting system due to potential odour issues and pest attraction. However, if you choose to, ensure very small amounts are mixed with large quantities of ‘brown’ materials.
How do I maintain the composter?
Regularly turn the compost using a pitchfork or shovel to aerate it. Ensure adequate moisture by adding water if necessary and cover the lid to retain heat and prevent rain from diluting the mixture.
What size garden is this composter suitable for?
A 100L composter is well-suited for medium to large gardens or households that generate a significant amount of organic waste. It’s ideal if you have an allotment or regularly maintain a substantial outdoor space.
Is assembly difficult?
These composters are designed for straightforward self-assembly, typically taking around 15-30 minutes with basic tools like a screwdriver. Clear instructions are provided to guide you through the process.
What happens when the composter gets full?
When your composter reaches capacity, you can either add more material or create ‘compost tea’ – diluting the finished compost in water for use as a liquid fertiliser. This helps to recycle nutrients back into your garden.
Are there any specific warnings about using recycled plastic?
While recycled plastic is durable, it may be slightly more susceptible to UV degradation over time than virgin plastics. Positioning the composter partially in shade can help prolong its lifespan and maintain structural integrity.