There is a new glass pipe cleaning powder called Pur Sterile. They were
recently at the Cannabis Cup cleaning people's pipes. I picked some up to try
and I'll never use anything else. They also offered everybody at the Cup a 50% coupon by going to https://www.pursterile.com/50off so you can...
I just starting using a new glass pipe cleaner called Pur Sterile and it works
great. None of the nasty smell or taste you get with rubbing alcohol or Formula
420. I know you can get it in most head shops in California, but they also have a
website PUR STERILE - Cleaning Glass Pipe -- Pipe Bongs...