Video: Training video - Cooking and making biochar with crop waste
"In this video, you will learn how to burn crop waste for cooking fuel while making biochar. This is free and easy and it makes very little smoke. You can stop collecting firewood. And, you don't have to tend the fire. Just light on top and you can leave to do other things. When you return, your meal is ready. And the valuable biochar you make can be used to greatly improve your crops."