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Best Composters220L + Plastic (2026)

1 composters matching capacity220L + materialPlastic, hand-picked from UK Amazon listings.

Not sure which one to pick? Read our Best Compost Bin UK (2026) guide.

Strata GN332 Outdoor Garden Compost Bin, 220L

#1 Pick

Strata GN332 Outdoor Garden Compost Bin, 220L
Rated 4.5 out of 5 stars (940)
  • Plastic
  • Small gardens
  • 220L

£42.99

Pros

  • Tight-fitting lid retains heat for faster composting
  • Sliding hatch for easy compost access
  • Which? 'Best Buy' rated plastic composter

Cons

  • Bulky to move once assembled
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This 220L plastic composter is a robust solution for managing your household food waste and transforming it into valuable garden compost. Constructed from durable, high-quality plastic, this composter offers excellent weather resistance and longevity, designed to withstand the elements of the British climate. Its generous capacity makes it ideal for larger gardens or households generating significant amounts of organic material – perfect for creating rich soil for your plants.

The large volume helps reduce how often you need to empty your composter, streamlining your composting process. The simple design allows for easy turning and aeration, key factors in accelerating the decomposition cycle. Remember to regularly layer green (nitrogen-rich) and brown (carbon-rich) materials for optimal results.

FAQ

What’s the best type of plastic used?

These composters are typically made from HDPE (High-Density Polyethylene), a robust and weather-resistant plastic known for its durability. This material is chosen for its resistance to cracking, fading, and degradation from UV exposure.

How much weight can this composter hold?

The 220L capacity allows for approximately 80-100kg of fully loaded compostable materials, but it's important to avoid overloading the composter which could compromise its structural integrity.

Does this composter require assembly?

Most models arrive flat packed and require minimal self-assembly, typically involving clicking together the base and lid. Instructions are usually included for quick and straightforward setup – check the specific product listing before purchase.

How do I turn my compost?

Regular turning is essential to aerate the compost pile and speed up decomposition. You can use a pitchfork or composting tool, or consider a tumbler composter if frequent manual turning is difficult.

What materials can I compost in this?

You can compost most fruit and vegetable scraps, coffee grounds, tea bags, eggshells, cardboard, paper, and wood shavings. Avoid adding meat, dairy, oily foods, or diseased plants to prevent unpleasant odours and pest attraction.

How do I empty the composter?

Simply tip out the finished compost through the large opening at the top. For easier emptying, consider a composter with a removable base for simpler removal of the finished product.

Does this composter need drainage holes?

Most models include pre-drilled drainage holes to allow excess water to escape, preventing anaerobic conditions and foul smells which can slow down decomposition.

How do I prevent weeds from entering?

Ensure the lid fits securely and overlaps the opening adequately. A small layer of compost or a mesh screen over the opening can also help block weed seeds from falling in.

What is the typical lifespan of this type of composter?

With proper care and maintenance, a good quality 220L plastic composter can last for 5-10 years. Regular cleaning and protection from extreme weather will significantly extend its life.

Can I store this outdoors all year round?

While designed to be weatherproof, prolonged exposure to intense sunlight or freezing temperatures could potentially damage the plastic over time. Storing it in a sheltered location during particularly harsh winters is recommended.