How to Clean a Glass Pipe Without Damaging It
https://dailydraw.clearhavendigest.com/posts/how-to-clean-a-glass-pipe-without-damaging-it
To clean a glass pipe without damaging it, a gentle approach using isopropyl alcohol and coarse salt is effective. Place the pipe in a plastic bag, add the alcohol and salt, seal the bag, and shake it carefully. The salt acts as a mild abrasive, while the alcohol dissolves residue. Rinse thoroughly with warm water and let it dry completely. Avoid harsh scrubbing or using boiling water, as sudden temperature changes can cause the glass to crack.