The item itself looks and functions as an almost-single-foundation black square receptacle. Players may open the composter to view a standard 12-slot storage container. When placing foodstuffs, Plant Fiber, or Horse Dung into these slots (try to stack them as you would a Furnace), as time progresses, they will break down into fertilizer.
Different types of foods yield better fertilizer amounts which players can sell at Bandit Camp for a considerable amount of Scrap.
Check out our comprehensive Composter guide for more details!
For more information on the farming system that the composter is used for, check out our Farming guide.