Excessive temperatures in compost can cause a spontaneous combustion, but this is very rare even among over-heated compost piles. Properly aerated and moist compost piles, no matter how hot, are not dangerous. Even hot compost bins that are fairly enclosed will not catch fire if they are tumbled and kept moist.
How do I keep my compost from catching on fire?
What Can I Do to Prevent my Compost Pile From Overheating?
- Avoid excessively large piles. ...
- Frequently keep an eye on your pile. ...
- Turn and mix up your compost pile frequently. ...
- Water the layers of your compost pile. ...
- Add the proper amount of green and brown material. ...
- Make sure you have proper air flow.
At what temperature does compost combust?
Compost temperatures must reach 300°F to 400°F (150°C to 200°C) for spontaneous combustion of materials to take place.
