$\text{C}:\text{N}$ ratio / Green Building & Sustainable Home Renovation Information & Advice

dropping food scraps in to a backyard compost tumbler
Recycling and composting

Backyard Composting Systems: How to Turn Food Waste Into Garden Soil

...ratio: greens and browns The ideal carbon-to-nitrogen ratio (C:N) is between 25:1 and 30:1 by weight, which roughly translates to a 2:1 or 3:1 ratio by volume - that is, two or three parts 'browns' for every one part 'greens.' Getting this balance right is the secret to fast, odor-free decomposition. Nitrogen-rich mate...