Boiling carbon?

[Snaz]

Originally Posted by fkshiu

I seem to remember that you would need to get the carbon up to temperatures only an industrial kiln can achieve to properly "recharge" the carbon. Not sure of the exact numbers, though.

Certainly the hotter the better but in my experience you can get quite a bit out of the carbon with a BBQ. My only measure is after being cooked the carbon will again "snap, crackle and pop" when wet albeit to a lesser extent than if new.