The compost is made from a mixture of animal manures, fish waste, paunch grass from abattoirs, waste from food and petfood manufacturers, fruit waste from packhouses and grape waste from wineries. No human waste is included in the organic certified compost. Bulking material such as bark, sawdust, and shredded municipal green waste is added to the mix to create the optimum carbon-to-nitrogen ratio. This also helps the compost to decompose aerobically.