12mm Glass Bowl for Waxmaid Ash Catcher and Silicone Pipe Replacement

This is a 12mm glass bowl replacement for Waxmaid silicone pipe ash catcher & ash catcher mini. How to clean glass bowl replacement for Waxmaid Ash Catcher?

1. Put the glass bowl into a storage bag.
2. Pour the alcohol of 70% concentration or higher in the storage bag, together with some coarser salt.
3. Shake up the storage bag until the water changed to a dirty brown.