How to Clean a Bong: Step-by-Step Guide
Clean a bong with 91% isopropyl alcohol, coarse salt, and hot water. Step-by-step instructions for the chamber, bowl, downstem, and percolators.
Best way to clean a glass bong: 91% isopropyl alcohol and coarse salt
91% isopropyl alcohol with coarse salt is the fastest method for a glass bong. The alcohol dissolves resin. The salt scours glass without dissolving. This method works on straight tubes, beakers, and most percolators.
Steps
- Empty the bong. Remove the bowl and downstem.
- Pour 1 cup of 91% isopropyl alcohol into the bong.
- Add 2 tablespoons of coarse salt.
- Cover openings with plugs or your hands. Shake for 30 to 60 seconds.
- Dump the solution. Rinse with warm water until the water runs clear.
- Repeat if resin remains.
Why 91% and not 70%
70% isopropyl contains 30% water. Water does not dissolve resin. 91% has more alcohol. 99% is stronger but evaporates faster and costs more. For thick resin, use 99%.
best way to clean a glass bong
Other options
99% isopropyl alcohol
99% isopropyl works on heavy resin. It evaporates in seconds. Use it in a ventilated room. It can dry out skin. It costs about $10 to $15 per quart.
How to Clean a Silicone Bong: Three Methods Compared
Acetone
Acetone removes resin faster than alcohol. It is flammable. Use it away from flames and in a well-ventilated area. Acetone can damage plastic parts and decals. Do not use it on acrylic bongs.
Commercial bong cleaners
Products like Randy's Black Label, 420 Cleaner, and Grunge Off contain a mix of solvents and abrasives. They cost $10 to $20 per bottle. Most work in 5 to 10 minutes. Read the label for glass only.
PBW (Powdered Brewery Wash)
PBW is a cleaner for brewing equipment. It removes organic residue. Mix 1 tablespoon per quart of warm water. Soak the bong for 30 minutes. Rinse well. PBW works on percolators that salt cannot reach.
Ultrasonic cleaner
An ultrasonic cleaner uses high-frequency sound waves in water. Add a few drops of dish soap. Run for 5 to 10 minutes. It cleans small parts and percolators. Units cost $30 to $100. Do not put large bongs in a small tank.
What to avoid
- Boiling water. Thermal shock can crack glass.
- Coarse salt in small percolators. Salt grains can clog holes.
- Acetone on decals or plastic. It can melt them.
- Harsh scrubbing with metal brushes. They scratch glass.
- Mixing cleaners. Some combinations produce toxic fumes.
How often to clean
Clean a glass bong every 3 to 7 days if you use it daily. Resin builds up in the neck and downstem first. A dirty bong affects taste and can harbor bacteria. A clean bong tastes better and hits smoother.