nice !
your way ahead of us
we just started up the worm bins
building a retort is on my list
grow well !
Discussion
And it can be as simple as a hole in the ground, just want to burn with no airflow from the bottom. Super easy. Here is my cone kiln in action, less then an hour to burn and you get about 4-5 gallons of biochar.
And the compost worms do really well in biochar, I’m now putting it through there first, then garden.