Vermicomposting uses worms, typically red wigglers, to break down food scraps into a nutrient-rich material called castings. The EPA lists worm composting as a practical option for indoor and small-space composting.
How it works
Worms live in a ventilated bin with moist bedding (like shredded paper). You add fruit and vegetable scraps, and the worms process them into castings you can use in gardens or houseplants. Keep the bin out of extreme heat or cold.
Pros and cons
It is compact and odorless when maintained well, making it great for apartments. You do need to avoid overfeeding and skip meat, dairy, and oily foods. See more small-space ideas in our guide to apartment composting.