Originally Posted by jimmmmaaaa
Hm, i was expecting this to be a flaw with the coals, not a typical scenario. Interesting. I I thought they were burning out, but if thats not the case i suppose im satisfied, big improvement on taste at least (or well, lack of).
My coconut coals, either ShishaCo or CH nats don't black up that much on the bottom. I usually pick them up, blow on them once or twice and they're red hot again. I don't know about AF though.
If the bottom of the coal becomes black to the point that you can't light it back up by blowing on it, there may be a moisture problem (your coal is dying). You can fix that by removing the moisture from your coals. Lay them out in a room that has a dehumidifier or expose them to the sun (by a window).