Quote Originally Posted by Nochowderforyou
No no no. Hot water and ice mixed together creates a vapor that increases pressure. There is a good chance your glass bong will crack or break if you do that. I once put wine glasses that came from the freezing cold outside, inside a hot dishwasher, and they all exploded as soon as it turned on. So no, I would avoid mixing those together.
Yes, that would be a bad idea. Unless your bong is high grade pyrex glass, it isn't going to be able to withstand that temp. change.