I have been using alcohol and a brush but it always leaves a smell and taste. I love this glass piece and would hate to replace it.
Did yall try rinsing it with hot water after cleaning? It evaporates the alcohol ive never faced a problem with taste and smell. If youre using cold water then the alcohol will stay in the bong and its toxic asf.Same problem! Tried soaking it in water for a while but didn't work