Originally Posted by opticalshadow
basicly you should get about 40 minutes out of most shisha before you notice a staleer or harsher taste, its normal after 40 minutes for this to happen for standered bowls as this is about time for your bowl to be done, this of course varies with your set up a bit.
by the end of your session you should have a black and hardend bowl of shisha, if you smoked the bowl correctly it will be liek this all the way though the shisha, if you got harsh taste and think your bowl is done, but you take the foil off and only the top layer is burnt then you used to much heat to quickly.
end result shoul dbe an almost even blakend crips shisha all the way to the bottom.
40 mins? thats half my session, i get well over an hour of great smoke out of a mod bowl (which is not the smallest bowl out there but sure not the largest and probably smaller than what most KM/syrian/etc hookah users are using)