What i am referring to is called chocalate you take your crack pipe with the brillo still inside and fill it half way with rubbing alcohol and shake the piss out of it pour the contents on glass then set it on fire to get rid of the alcahol let cool then take a razor blade to the glass scrape up that goodness now you have mo crack. This crack is actually more pure than what you had to begin with.... Has anyone here on this forum done this before?