It is important to note that aluminum foil, especially true for 'non-stick' foil and aluminum cans is coated with one or more other agents. Aluminum cans I can say for certain are coated with layers of ink and a layer for shine on the outside and another layer of something on the inside so the drink doesn't react with the metal.
Nullific Reviewed by Nullific on . Is Aluminum Foil bad? Is aluminum foil bad even if you only use it like twice a month tops? i always use some aluminum foil for a nice gravity bong but never on custom pipes. I was wondering if it would be bad to put it on a homemade bong and use it as the bowl or should i find a better bowl? Rating: 5