Re: completing a bowl
something I like to do, since I have a large sized bowl that fits almost 30 grams is this:
Once my first set of coals gets small and I cant get as big of smoke I take them off, put them out take off the foil (with out using your hands ppl! its hot!) then take a fork and get off all the really burnt stuff and flip the shisha patty. then I recover it in foil as normal, light some new coals and go on with the session.
for me this works cuz the coals I use last between 45 minutes and an hour.