I think it'll keep the "potency" inside the dome (bong-style) for a few minutes... 60 minutes tops... I THINK.

As to burning it down to a popcorn... well, when I did vape, I didn't push it... if it stopped producing vapor, I tossed the weed.

But if you want to get every last bit of THC out, roll a joint... I'm sure you'll get 0.04% higher.
turtle420 Reviewed by turtle420 on . vape question I just got a vape a couple of days ago, one of the cheaper ones that are just like the BC, and I really really like it. But I just had a couple questions for anyone who has one like this. I've read that you're supposed to stop when your product is brown, but I usually go until it's all black and there's no more vapor being produced. Obviously if the stuff isn't burning and there's still vapor being made shouldn't you leave it on until it makes no more vapor, even if it is black and crispy? Rating: 5