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How to Clean a Bong: Breaking Down Resin Step by Step

by Angel Ferrer 8 min read

Cleaning Bong Tips

Short Answer: For effective bong cleaning, start with a hot water rinse to loosen the resin, then use isopropyl alcohol (IPA) for a deep clean. Gently rock and shake the bong to agitate the resin with salt, soak, rinse thoroughly, and dry completely. Make sure to wait 30 minutes for the IPA to evaporate before using your bong.

How to clean a bong:

  1. Cannabis resin requires specific solvents for removal
  2. IPA is the most effective cleaning agent due to its molecular structure
  3. Empty and rinse your bong with hot water to loosen the resin
  4. Pour IPA to fill half the bong water chamber, and add coarse salt
  5. Rock and shake your bong so the IPA and salt remove resin
  6. Let soak for 20-40 minutes and rinse with hot water
  7. Wait 30 minutes for IPA to evaporate before use

This article discusses how to clean a bong with alcohol, organically, and clay-based cleaning formulas. First things first, understanding why bongs are so hard to clean.


Step 1: Know your enemy - cannabis resin

how to clean a bong

Before you start cleaning, understand what you're up against. Cannabis resin is a sticky, hydrophobic substance that stubbornly clings to glass surfaces. Its molecular structure repels water, making simple rinses ineffective.

Can you clean a bong with water alone? No. Water alone can't break down resin's molecular structure. You need a solvent that can dissolve nonpolar compounds like Isopropyl Alcohol.

Reduce cleaning: Stop resin from entering your bong water using a double filtration system. This system stops ash, resin, and tar before it enters your bong water,keeping your bong cleaner much longer.


Step 2: Choose your weapon - Isopropyl Alcohol (IPA)

how to clean a bong with alcohol

IPA is your best bet for effective cleaning. Its molecular structure allows it to break down resin compounds, dissolving what water can't touch.

Why IPA works: IPA's non-polar nature matches resin's, allowing it to penetrate and dissolve the stubborn buildup. It's up to 90% more effective than water-based solutions.

Pro-tip: While natural methods exist, IPA is significantly more effective and safe when used correctly. Allow 30 minutes for complete evaporation after cleaning before use. For an organic alternative, try an allnatural bong cleaning solution, which works much faster at breaking down resin without alcohol


Step 3: The hot water prep

rinsing dirty bong

Start with a hot water rinse to prime your bong for deep cleaning. Stagnant bong water can cause mold to grow within 48 hours, so it’s important to dump and rinse your bong before cleaning.

  1. Empty any stagnant water.
  2. Run hot tap water (around 120°F) over resin-covered areas for 30-60 seconds.
  3. Fill the bong halfway with hot water.
  4. Cover openings and shake for 30 seconds.
  5. Pour out water and run hot water into the mouthpiece for 1-2 minutes.

Why it works: Hot water causes thermal expansion of the glass while softening the resin. This differential expansion weakens the resin's grip on the glass surface, prepping it for the IPA treatment.


Step 4: Apply your cleaning solution

cleaning-bong-with-IPA

Now it's time to bring in the big guns: isopropyl alcohol (IPA). Pour a bottle (60 fl oz) of 91% or higher IPA into your bong's water chamber. 

If you are eyeballing it, just aim to fill up at least half of your bong water chamber or more (not enough where IPA can flow out of the bowl’s joint).

Seal all openings using bong cleaning plugs or improvise with plastic wrap and rubber bands. This step is crucial to prevent vapor inhalation and for any alcohol and resin from getting onto your hands.

Gently rock the bong for about 10 seconds, allowing the IPA to coat the interior. As you tilt, make sure the liquid reaches all those resin-heavy nooks and crannies. You're witnessing the start of a molecular breakdown - the IPA is already beginning to dissolve the stubborn resin on contact, even if you don’t see it break apart initially.

Step 5: Clean the detachable bong parts

cleaning bowl and downstem

Take your bong’s bowl and downstem, which are common parts of a bong that are usually detachable. Place them in a ziplock bag and fill enough IPA to make sure all the parts are submerged. 

Let these parts soak and leave the bag to the side to add salt to.


Step 6: Add your abrasive sidekick

adding salt to bong

To supercharge your cleaning power, introduce coarse salt to the mix. Add about 4-5 tablespoons directly into the IPA solution in your bong’s water chamber. Make sure to add some to the ziplock holding the bowl and downstem as well.

If you are eyeballing it, the goal here is to create a free-flowing, abrasive mixture. You should see the salt swirling easily as you move the bong and the IPA liquid - not clumping at the bottom.

Why it works: This dynamic duo combines chemical dissolution (IPA) with mechanical scrubbing (salt). The IPA breaks down the resin's molecular structure, while the salt acts as a gentle abrasive, scrubbing away the loosened particles without scratching your glass.


Step 7: The shake and soak

dirty bong cleaning

With your bong securely sealed, it's time to shake the bong for about 1-2 minutes, combining up-and-down and circular motions. This ensures the cleaning solution reaches every spot inside your bong and allows the salt to remove the resin from the glass. 

Watch the salt movement - you should see it swirling and scrubbing against the glass, breaking apart that stubborn resin. Shake the ziplock bag as well to make sure salt is flowing through the bowl and downstem.

For areas with heavy buildup, try a targeted approach. Angle the bong to submerge these problem spots in the solution. I find having a folded towel helps to hold the bong in unique angles.

Let it soak for 5-10 minutes, then give it another vigorous shake for 5-10 seconds. Rotate to a new angle and repeat this process, focusing on different resin-heavy areas each time. Keep at it until you see satisfying clumps of resin falling off the glass.

Pro-tip: Letting your bong soak at different angles prevents you from having to fill your bong entirely with IPA. This is not recommended and is not cost-effective, you can save on IPA by just rocking gently until all the resin is removed.


Step 8: The final rinse

rinsing bong water

Once you're satisfied with the cleaning, it's time to dispose of the dirty solution. Pour it into a double-layered plastic bag and place it in the trash. Never dump IPA down the sink - it's harmful to both the environment and your plumbing.

Now, rinse your bong thoroughly with hot water. Run it through all chambers and percolators until the water comes out clear and odorless. This step is crucial for removing any lingering IPA and loosened resin particles.


Step 9: Wait for IPA to evaporate

air drying glass bong

Allow your bong to air dry completely. Stand it on a clean towel in a well-ventilated area. While IPA typically evaporates fully within 15-20 minutes at room temperature, it's best to wait at least 30 minutes before using your bong. This extra time ensures all IPA vapors have dissipated, as inhaling them can be harmful.

Pro-tip: Once completely dry and after the full evaporation time, you can add fresh water and safely enjoy your squeaky clean bong. The difference in smoothness and flavor will be immediately noticeable.


How to clean your bong organically: natural solutions

For those preferring natural cleaning methods, here are two effective organic solutions that break down stubborn resin without harsh chemicals.

Option 1: The Citrus Power Cleanse

Materials needed:

  • Fresh lemon juice
  • Warm water
  • Baking soda

Steps:

  1. Mix equal parts lemon juice and warm water in your bong.
  2. Add 2-3 tablespoons of baking soda.
  3. Cover all openings and shake vigorously for 2-3 minutes. The fizzing action helps dislodge resin.
  4. Let the solution sit for 1-2 hours, shaking occasionally. Citric acid works to break down resin's molecular structure.
  5. Rinse thoroughly with hot water.

Why it works: Lemon's citric acid acts as an organic solvent, effectively breaking down the non-polar compounds in resin. Baking soda's mild abrasiveness and alkaline nature supports this action, neutralizing acidic components and providing gentle scrubbing.

Option 2: The Vinegar and Rice Remedy

Materials needed:

  • White vinegar
  • Warm water
  • Uncooked rice
  • Bottle brush (optional)

Steps:

  1. Fill your bong halfway with equal parts white vinegar and warm water.
  2. Add 1/4 cup of uncooked rice.
  3. Cover openings and shake vigorously for 1-2 minutes. Rice acts as a natural, non-scratching abrasive.
  4. Let the solution sit for 30 minutes, shaking occasionally. Acetic acid in vinegar dissolves organic resin compounds during this time.
  5. For stubborn spots, use a bottle brush with the solution.
  6. Rinse thoroughly with warm water.

Pro-tip: For both methods, you may need to repeat the process for resin heavy bongs. Always finish with a thorough hot water rinse to remove any residual cleaning solution.

These organic methods may take more time than chemical cleaners, but they offer a natural, residue-free alternative. 


Tap water issues: Cleaning water stains and mineral deposits

After cleaning your bong you might notice two other common issues from using tap water: water stains and mineral deposits. These are different from resin and require specific cleaning approaches.

Removing Water Stains

Water stains appear as cloudy, white marks on the glass, often in areas where water frequently evaporates. These stains are caused by minerals left behind from hard water.

Why they're tough: Unlike resin, water stains are inorganic, making them resistant to alcohol-based cleaners like Isopropyl Alcohol. However, the acidity in vinegar dissolves these mineral-based stains without damaging the glass. For extremely stubborn stains, commercial limescale removers designed for glass can be used, but always follow the product instructions carefully.

How to remove glass water stains from bongs:

  1. Create a 1:1 solution of white vinegar and water.
  2. Soak the affected areas for 15-30 minutes.
  3. Gently scrub with a soft brush or cloth.
  4. Rinse thoroughly with hot water.

Eliminating Mineral Deposits

Mineral deposits are scaly, often yellowish or white buildup, typically found in areas where water sits frequently, like the base of your bong or the nooks and crannies of your downstem or bowl’s joints.

Why they form: Every time you use tap water in your bong, you introduce minerals. As water evaporates between uses, these minerals are left behind, gradually accumulating.

Risks of mineral deposits:

  1. They can alter the taste of your smoke
  2. Heavy buildup can restrict air flow, affecting your draw
  3. The rough surface can trap bacteria

Removal process:

  1. Mix equal parts white vinegar and hot water.
  2. Soak affected areas for 1-2 hours.
  3. Scrub gently with a soft brush.
  4. Rinse thoroughly with hot water.

The extended soak time is crucial here. It allows the acetic acid in vinegar to break down the mineral structure. For severe buildup, you may need to repeat this process or use a commercial descaling product designed for glass, like Limescale.


Clay-based organic cleaning solution: A breakthrough in resin removal

Clay-based organic cleaning solutions are changing the game in bong maintenance. These formulas use the unique properties of clay to tackle cannabis resin in a way that's both effective and gentle. Think of the clay particles as tiny magnets for resin. They latch onto the sticky residue and literally pull it away from your glass.

At the same time, these clay particles break down the oils in the resin, turning them from a stubborn, gummy mess into something that easily rinses away. This two-pronged approach means you get a thorough clean without any harsh scrubbing or dangerous chemicals. 

How to clean a bong with a bong cleaner:

  1. Pour solution into bong, coating all resin areas.
  2. Let sit for 30 minutes 
  3. Gently swirl if needed to dislodge remaining resin
  4. Rinse thoroughly with hot water.

Conclusion

Effective bong cleaning starts with understanding resin's hydrophobic nature. Isopropyl alcohol (IPA) is the most efficient cleaner, paired with salt for abrasion. Hot water preps the bong, loosening resin. Apply IPA, add salt, shake vigorously, and soak. Rinse thoroughly and allow time for IPA to evaporate. For organic options, lemon juice with baking soda or vinegar with rice offer natural alternatives.

Regular maintenance prevents stubborn buildup. Address water stains and mineral deposits with vinegar solutions. Clay-based organic cleaners provide a gentle yet effective option, pulling resin away without harsh chemicals. Proper cleaning ensures optimal function, preserves flavor, and maintains the purity of your medical cannabis experience. Remember, a clean bong is crucial for both equipment longevity and your health.