Char into Charcoal

[aft2001]

In chemistry it's sometimes a pain to get ash for charcoal, especially when you want to be in character and not just lighting shit on fire. I thought that, through some extraction, heating, and chemical reactions, one could get charcoal from char, as long as mining is somewhat competent. The quality of the char will determine the general amount of charcoal you will end up with, as well.

What do you guys think?