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The higher the temp, the more the fats and lipids will burn off, making it very hard to breathe after the hit. Many people feel they can not breathe for up to 15 minutes after a hot dab.
Another major thing we find about low temp dabs is you get more hits. These hits are less harsh so you can actually take in more. Also, if you have x amount of dabs and on a hot dab you get 1 inhale. Your body can only absorb so much. But if you take that same dab at a lower temp and get 5 inhales, look your body can absorb it more.
Low temp is the way, and vaping is the ultimate way like with the Silver Surfer