Making Compost in 18 Days Using the Hot Method: This method creates rich, nutrient-dense compost in a short time by using layers of brown materials, green materials, and manure to generate heat through aerobic decomposition. The pile is built on sticks and each layer is moistened before adding the next. It is turned every other day for three weeks to maintain heat levels, which breaks down organic matter and kills pathogens. The finished compost is dark brown and smells pleasant.