We have had the help of our local Fire Safe Council crew in making shaded fuel breaks around and below our structures, which are also along a strategically important corridor to protecting old growth, redwoods, nearby towns, and private forest interests. We have had five biochar burns this winter, consuming most of the 3 acres of brushy ladder fuels relatively close to decent place for the Ring of Fire Kiln. Standard burn piles were made on steep slopes too far to haul brush to the kiln reasonably efficiently. The crew cut and dragged it into a ring around the kiln as I fed it. Once the fire got ripping, it chewed up even green, wet brush with minimal smoke if at all careful in feeding. Putting fuels around and not on top of the flame helps reduce smoke a lot. The 3acres that have been converted to shaded fuel breaks still have the larger, healthier trees, any snags not risking a healthy large tree, and mosaic patches of diverse understory plants where they pose minimal risk of spreading fire. Much of the native vegetation will grow back.
We produced between 200gal-400gal of char per burn (some went most of a day, others just a couple hours). I estimate 1500gal+ total since December. What I plan to use in the garden, food forest, or putting back where it came, I inoculated with compost extract, fish hydrolysate, kelp, azomite and a little of my homemade oyster shell and weeds imbued apple cider vinegar. One batch I only inoculated with compost extract, as I intend to use this for filtration and decontamination purposes, like between my driveway and shop and our pond, above our water source, or off roadways going into ponds and creeks. I inoculate on the back half of quenching, once it is cool enough to walk on or touch. Char is further inoculated by being used at 5% of compost piles in progress, in chicken bedding woodchips, or mixed with 2 parts finished compost.
Pictures below include burns, shaded fuel breaks (finished and in progress), and uses of the biochar like in compost, bird bedding, pond and road runoff filtration.