How much bulking agent is required?
Friday, 6 January 2012 | HOTBIN Composting
Bulking Agent Ratios
Bulking agent is required to create an areation chimney.
This table gives you a rough idea of what that translates to:
Note: The amount of bulking agent that needs adding will depend on the waste mix going into the bin. If other woody waste is being added from the garden, then less bulking agent will be required, a 1:10 ration rather than 1:5.
Do I need to add bulking agent if using paper?
Yes, ALWAYS add bulking agent with food waste. The bulking agent will form a supportive structure that maintains airflow.
Remember: In hot composting, paper fixes wetness and wood chip helps aeration. You cannot balance ‘wet waste’ by adding wood chip bulking agent, nor can you fix ‘poor aeration’ by adding paper.