I wouldnt risk it personally, if the glass has any bubbles in that could cause it to break. Just go and buy some isopropyl alcohol, its relatively easy to get hold of, inexpensive and cleans glass a treat.

Also as burnable pointed out boiling resin smells nasty as hell.
dean0000 Reviewed by dean0000 on . boiling glass hey everyone, i need some pointers on boiling glass parts to clean. i have a pretty thick bowl/stem that i just boiled. this got it alot cleaner than just trying to clean it by hand. (i dont have any rubbing alcohal) ive broken plenty of glass steak plates. so my question is will it break? is 420 glass high quality pirex? ive heard something about adding salt to the mix. stoned in the kitchen:D peace Rating: 5