Compostable or not?

Start typing any material name to see if it can be composted and which methods work best. This tool covers common kitchen waste, garden materials, and those tricky items people often ask about. There are many myths out there about composting. Lots of people assume their way of composting is the only way. The fact is, anything organic left in a pile in your garden will decompose - the naturally present air, moisture, and countless microbes and critters do all the work for you.

Learn lots more about composting in our how-to.

According to the compost police, compost is so delicate that getting the quantities wrong means total failure. Add wood ash and your compost becomes too alkaline. Add coffee grounds and it's too acidic. Don't have enough 'browns' to balance your 'greens' and the heap is doomed. The reality? Composting is a buffered biological system - microbes, fungi, and the decomposition process itself naturally moderate pH over time. Your finished compost will end up roughly neutral regardless of whether you carefully measured ratios or just chucked things in as they came. If you look at it every day or so, you'll develop a feel for what it might be lacking.

A happy compost is teeming with life - and that's exactly what you want. Worms, woodlice, millipedes, beetles, springtails, and countless other invertebrates are all hard at work breaking down your waste. Black soldier fly larvae often cause panic in Facebook groups but they are a favourite of experienced composters - processing material incredibly quickly and producing larvae that birds love. You might also spot centipedes (predators eating other bugs), different types of flies, ants building nests in warm spots, and - if you're lucky - slow worms hunting in the edges. None of these creatures are a problem.

Read our no-nonsense guide to composting.

Whether you need to worry about pests raiding your compost depends entirely on where you live and what's already in your area. If you live in bear country, leaving food waste accessible is genuinely dangerous and secure bins or burying material becomes essential. Raccoons are clever enough to open most standard compost bins, so if they're common in your neighbourhood, you'll need proper latches or enclosed systems. Foxes and badgers will dig open heaps for anything meaty or interesting. But small amounts of 'risky' materials might cause no problems at all if local pest populations are low or well-fed elsewhere. The best approach is to experiment: bury scraps in the middle of the heap or use a bin with a mesh base and a secure lid, then observe what actually happens. If there are no signs of digging or disturbance, you can probably relax the rules a bit. If you wake up to a destroyed heap, tighten security or change what you're adding. What works in one garden might be completely different a neighbourhood away.