Types of Composting and Understanding the Process | US EPA Apr 3, 2023 · Composting, or controlled decomposition, requires a proper balance of “green” organic materials and “brown” organic materials. “Green” organic material includes grass clippings, food scraps, and manure, which contain large amounts of nitrogen. “Brown” organic materials includes dry leaves, wood chips, and branches, which contain Commercial Compost Facility | Composting Business Commercial compost facility is an equipm...