MAKING BIOCHAR: with Peter Hirst of New England Biochar

[See more on biochar local food production: ] Peter Hirst (saltydog335@) brought his 70 gallon stainless steel biochar retort to Warner, NH and showed us how to burn 100 pounds of wood into 30 pounds of biochar. That’s enough for a few beds in our garden after we grind it up and mix it with an equal amount of compost to innoculate the biochar with soil bacteria. But the biochar pioneers are scrambling to find economical and efficient furnaces that can produce tons o