Antonin chaozone

Thanks a lot, that's already quite essential and helpful information
I'm not really worry about ash... soils are really acid here and all the ash from the fire place goes for to the garden. The tar wood might be more of an issue ? But does it do anything negative ? (let's say, compare to... a small rock in your garden bed... )

One reason i'm asking all of this, is because here in portugal, all the locals do big burn pile in the spring an fall, just for the sake of getting rid of the biomass they produce (they don't care about mulching, they use synthetic nutes'). I understand they try to reduce the fuel in case of wild fire.

But if we could teach them to just turn off the fire with water, that's not much of an extra effort, and they might ( the probably is thin) see the point !
That would be already that much carbon that doesn't end in the atmosphere...

Hiya
Simple but straitforward :

Start a fire from any scrap wood and branches that won't fit the woodchipper
When the fire collapse into amber, water it.
You end with a pile of charcoal.

The idea here is not to be efficient in term of charcoal produced; but the work involved is minimal and the pile can be huge (much bigger than any metal drum... )

My question: any big drawback with this method, that would make the biochar not suitable for gardening, for any reason i'm missing??

(yes, some pieces of wood won't be totally transformed intocharcoal... then i guess it's just like having abit of woodchips in the mix... )

Thanks =)