Can the Biochar from a RMH be reused?

Hi sorry if this is a dumb question but I was wondering if this has been done at WL before and if so how so?

I know people use(and buy) biochar but idk if the process it goes through in a rmh would make it less or more useful.

Hi Christine;
If an RMH is burning correctly there is very little if any charred material left over.
In a few cases, there might be a charred piece remaining, I assume they would be usable.
We like our dragons to quickly and efficiently consume any wood products that we feed them.
A good dragon will leave only fly ash behind.

OOOOHHHH I see, Thank you Thomas! Super helpful.