Make your own BioChar and Terra Preta

Step 4 Remove from fire and cool

Watch out for hot ground, hot sand!

Comments

[strmrnnr]

Figure out a way to inject some water after the blowtorch sequence is stopped you can produce steam inside the barrel and activate the charcoal for better filtration. This mixed with the soil may take a lot acid out of the acid rain water going into your food in the garden.