if you got 'smoke', it is too hot ... you should barely be able to see a very fine 'mist' when exhaling, no smoke ... also, according to a detailed, valid, laboratory report, a vaporizer only extracts about 45% of the THC (if you don't believe that figure, smoke the leftovers, you will get just as high) ... a vaporizer is HIGHLY recommended to save your lungs, though ... I save the leftovers for cannabutter cooking ... :smokin: