Biochar is the collective term for charred biomass that occurs through incomplete combustion at high temperatures without or with little access to oxygen. Biochar can look like barbecue charcoal and is made by heating organic material to 400-700 °C with little access...
Biochar is a carbon store
Biochar![](https://www.nullutslippsgaarden.no/wp-content/uploads/2023/02/biokull.jpg)