If you got a gram of weed. It has 22% thc. You burn the whole gram to ash.Q: Which method of taking heat to the bud WILL MAKE IT BURN more or less THC. A: None, the whole thing was burned(turned to smoke), all the bud, all the THC. If you use a bong you can take in more smoke then you can any other method cause the smoke is cooled. Water/Ice bongs are the best for taking is as much smoke as you can get in one hit.