Food Composting bulking agents
Food waste has high moisture content and as it is broken down, water is released into the composting which will as it is wet will not contain sufficient air spaces for aerobic composting and the food will decompose into a wet, smelly sludge.
To avoid this situation a bulking agent needs to be added to the compost so as to create spaces allowing air to circulate within the composting material. The correct bulking agent will also absorb the liquid from the food to maintain the correct moisture content of the food waste during composting. A new section on the food waste page of carryoncomposting.com gives details of composting bulking agents.