Re: how do you know?
i can usually tell now when the bowl is finished from the flavor change. it tastes "stale" after 40 minutes-1.5 hours. then i'll check the foil, it will be crispy and dry as hell.
i don't even burn it anymore, it's become an easy technique for me to smoke without burning now. it took me a lot of practice (300+ bowls) but i've got it. now to try tangiers...(fingers crossed)