There is a range of commercial compost bins which vary in size and complexity. With regard to size, a medium-sized compost bin (240 litres) should cope with all the kitchen waste and garden waste of 2-4 people.

Worm bins are especially suitable for households with limited outdoor space and are designed to process kitchen waste, not garden waste – see Composting with worms page 10 of the composting guide.

Bins are usually available from hardware and garden stores, and range in price from $40 to $220. Generally speaking, bins that require less turning are more expensive.

While larger bins are obviously more suitable for larger households, bins may not vary significantly in performance. The most important thing is knowing how to manage your bin so that you make good compost.