Bubble hash is a solventless cannabis concentrate made by soaking cannabis material in ice water, agitating it so resin glands break free from the plant, and straining the water through a stack of mesh filter bags. The collected resin dries into a soft, sandy hash. No solvents, no heat, no chemicals. You need cured trim or flower, a bucket, ice, cold water, and a set of bubble bags.
What You Need Before You Start
- 28 to 100 grams of dried trim, small buds, or fresh frozen material
- A 5 gallon bucket, food grade plastic, clean
- A bubble bag set: 220, 160, 120, 73, and 25 micron
- Two bags of ice, made from filtered water
- Cold filtered water, near 34 to 40 degrees F
- A stiff paddle or large spoon
- Drying screen, parchment, and a clean towel
- Nitrile gloves and a clean work surface
Check your state law on home concentrate production before you begin. Legal possession limits and home extraction rules vary by state.
cannabis bubble bags for home extraction
Step-by-Step Process
- Freeze the cannabis material for at least 24 hours in a sealed bag. Cold material keeps resin heads brittle so they snap off clean.
- Set the 220 micron work bag inside the bucket and fold the edge over the rim.
- Fill the bucket about halfway with cold water.
- Add a layer of ice, then the frozen cannabis, then another layer of ice.
- Let the mix soak for 10 to 15 minutes without touching it.
- Stir with the paddle for 5 minutes. Use slow, circular strokes and keep the ice moving. Do not blend or drill, which shreds plant matter into the resin.
- Let the bucket rest for 10 minutes so resin settles.
- Lift the work bag, let it drain, then squeeze the bag over the bucket to recover trapped water. Set the bag aside.
- Stack the remaining bags in the empty second bucket from coarsest to finest: 160, 120, 73, then 25 micron.
- Pour the water from the first bucket through the stack in one steady pass.
- Lift each bag one at a time and rock it side to side so resin collects in a corner.
- Rinse each bag's resin with cold water from a spray bottle to push it into the center.
- Flip each bag inside out over a parchment lined screen and scoop the resin out with a spoon or card.
- Press the resin between a towel and a pressing screen to wick out water.
- Push the patty through a fine sieve or grater onto parchment so it dries evenly.
- Dry the hash in a dark room at 60 to 70 degrees F and 30 to 50 percent humidity for 5 to 7 days.
- Break the hash and check the center. It is dry when it crumbles instead of smearing.
- Store the cured hash in an airtight glass jar in the dark at cool room temperature.
Run It Twice
Most material holds a second wash. Return the work bag contents to the bucket with fresh ice and water, stir for 3 to 4 minutes, and run the bags again. The second pull is lighter in color and lower in yield. A third wash is usually not worth the time.
Reading Your Grades
The 73 and 120 micron bags typically hold the best quality resin, with full heads and a light tan color. The 25 micron bag catches small heads and broken bits, which are fine for edibles or pressing. The 160 micron bag usually collects green plant matter and is often discarded.
Cannabis Washing Bags Near Me: Your Ultimate Guide
Common Problems
- Green hash means over-agitation or warm water. Stir less and add more ice.
- Low yield comes from material that is too old, too dry, or low in resin.
- Hash that never dries points to high humidity or patties that are too thick. Sieve finer and extend drying time.
- Mold risk rises when hash is jarred damp. Confirm the center is dry before sealing.