5drive

You don't get smoke out of a vaporizer (hopefully), you get vapor. You're heating the herb enough to release THC and cannabinoids (starting about 285 degrees F, with the best temp range being about 350-380), and trying to stop short of hot enough to release the vapors you don't want (benzene in full force at about 390). At about 450 F, you're in combustion territory. (Temps taken from a 2001 NORML study). If you turn the herb black you're going way too far/hot. It's more work than smoking, but you get more THC than from smoking, a better high (JMO), and it's a lot easier on your lungs.