Quote Originally Posted by budcronicindo
Thats no good bro. Copper is some bad shit for you. Not including the shit they add to the copper to change its properties. I wouldn't smoke out of it anymore.
Well... its true that some copper compounds are toxic, but the temperatures reached into a vaporizer are WAY too low to vaporize any usual copper compound... so, im sure you dont need to worry about poisoning by this small bubbles, whatever they may be.

And, much probably, this bubbles are just an effect of different thermical dilatation between the gold plating and the layer of metal below it. So i think you really shouldnt worry about this. :thumbsup: