What is biochar anyway? If you’ve bought a bag of potting soil or garden soil recently, you may have read the bag and noticed that your soil includes this mysterious “biochar.” Biochar is a fine-grained charcoal made from heating biomass, or organic matter, with little to no oxygen. It is found naturally in soils around the world, and it creates a diverse microbial population, improves water retention, and sequesters carbon.
