We made many batches of charcoal a couple years ago. We would grind the charcoal into powder and inoculate it with compost tea from vermicomposting. This biochar was then added to our compost where it eventually reached our gardens and potted plants. I have a lecture on the subject that I've delivered to several master gardener groups around Texas, and I've been planning on taking my lecture and making a tutorial article for ATP.
