Quote Originally Posted by Inferius
Yeah why exactly are you letting it evaporate? I don't understand, the alcohol extracts the cannabinoids, and then you're throwing them away for empty plant matter?
:wtf:
Alcohol evaporates easily, THC molecules do not. Alcohol is volatile, and THC isn't. The THC comes out of solution (with the alcohol) when the alcohol is allowed to evaporate.

At least that is my understanding. I remember something like that way back in chemistry classes... something dissolved in alcohol will remain behind if you allow the alcohol to evaporate (it would be true for most things... it's true of water).

At least that's how I envision it... maybe I'm wrong.