Empty the bong completely
Rinse with warm water to remove loose residue
Add isopropyl alcohol (70% or higher) to the bong until the dirty areas are covered
Add coarse salt (kosher or coarse) to the bong
Cap the bong openings with your hands or stoppers
Shake vigorously for 30–60 seconds
Let it soak 15–30 minutes if buildup is heavy
Shake again and gently rotate to reach all inner surfaces
Pour out the dirty alcohol/salt mixture
Rinse the bong thoroughly with warm water
Repeat alcohol + salt cleaning if residue remains
Clean the bowl piece separately by soaking in isopropyl alcohol for 15–30 minutes, then rinse
If there’s an ash catcher, clean it the same way (soak, shake with salt, rinse)
Use pipe cleaners or cotton swabs for hard-to-reach areas and the downstem
Rinse again until no alcohol/salt smell remains
Dry by air-drying upside down on a clean towel or rack
Reassemble and perform one final quick rinse before use