bubble hash yields

How To Prepare Bubble Hash Yields Expertly

My favorite extract is hash rosin because it is a truly broad-spectrum extract and can be used to create a huge variety of goods. You must first learn how to manufacture bubble hash yields to make hash rosin.

To separate plant debris from trichomes, the tiny wax-enclosed glandular heads, which contain approximately 90% of the plant’s cannabinoids, terpenes, and flavonoids, you use water, agitation, ice, and 25–220 micron filter screens. This extraction method is called “solventless” since it does not use non-polar solvents such as ethanol or butane.

The glands are very delicate and can burst open easily, which is why a closed-loop system is used in large-scale extractions. The efficiency of your bubble hash yields will depend on the quality of your trichomes and the size of your screen bags.

Is Water A Solvent

bubble hash yields

This physical extraction technique uses ice water to move the trichomes through several mesh bags with different micron densities. You must work in a reasonably chilly atmosphere because the ice water prevents the trichomes from dissolving and spreading into the mesh. Solvents are not used during ice water extraction.

Because THC and CBD are non-polar, they do not dissolve in water. Trichomes are transported through the mesh by the water, just like sand is transported by a river. The mesh bags are then separated by micron size, and the trichomes are collected. There are a few reasons why water is not a good solvent for cannabis extractions.

First, plant material is fairly polar. This means that it will absorb water, which can lead to extractions that are too wet and difficult to work with. Second, water can dissolve some of the plant’s chlorophyll, giving the final product an unpleasant taste. For these reasons, most extractors prefer solvents like ethanol or CO2.

Tools Required

  • Right Harvest Freeze Dryer
  • Bag filters (a.k.a Bubble Bags): I favor only mesh bags. Mine most frequently used bags are the 45, 73, 120, 160, and 220.
  • Thanks to the inline water filter (single-stage carbon filter) in the agitation and collection vessel, your hash won’t taste like chlorine.
  • Collection Metal Spoon Clamps
  • System of Cold Water Rinsing (option A): An outlet for 1/4 HP Water pump toggle switch, drinking water hose with a 10″ spray head
  • System of Cold Water Rinsing (option B): Pressure Sprayer, 2 Gallon


  • Cannabis (Fresh or dry frozen): Even for test samples, I hardly ever wash anything less than a QP (112 grams).
  • The best ICE is a large 1.25′′ Draft ICE (40+ pounds minimum).
  • Heavy Duty Parchment Paper

Fresh Frozen And Dried Material

bubble hash yields

The two types of cannabis used to manufacture ice hash are fresh frozen cannabis, and dried cannabis. The output hash will be directly related to the input content. No magic is there here. Fire up, Fire down. Waste not, want not.

  • Fresh frozen bubble hash yields that are lighter and have more monoterpenes
  • Darker light golden hash is the dried product. It will have more sesquiterpenes.

When decarboxylating your cannabis material before making ice hash, it is important to use low heat over an extended period. If you use too high of heat, you will evaporate off many of the terpenes that give cannabis its flavor and aroma.

How To Trim Cannabis For Bubble Hash Yields

After the plant is harvested, remove any fan leaves lacking trichomes. Trichomes can be left on and run, taken off, or utilized to make delicacies. Sugar leaves should never be removed; they will release chlorophyll, turning the hash green. Sugar leaves must always be left on. Next, it’s time to manicure the buds. This is when you remove any remaining leaves and twigs.

You want to avoid putting anything green in your hash. The more trichomes, the better! Once the plant is properly trimmed, it’s time to begin drying. Drying happens best in a dark, cool, and dry place. The ideal relative humidity is around 60%. If the RH is too high, your trim will mold. If too low, your trichomes will fall off the plant matter. Too much heat will also cause trichomes to fall off.

The best way to dry it is by hanging your cannabis upside down. This allows air to circulate the plant, preventing mold and even drying. If you don’t have a place to hang your trim, lay it on a drying rack or screen. Ensure good airflow is around the cannabis so it dries evenly. Once the trim is dry, it’s time to start breaking it up.

You want to break the plant matter into smaller pieces, but you don’t want to grind it into powder. The ideal size for bubble hash yields is about the size of a grain of rice. Once your trim is the right size, it’s time to start the bubble hash process.

How To Fresh Freeze Cannabis For Ice Hash

bubble hash yields

I utilize woven baskets and chest freezers to run freshly frozen material, allowing the plant material to freeze without wilting or chlorophyll leakage. I cut all fan leaves at the stem in small amounts. Hash should not be green. Another choice is to leave fan leaves on, which is preferable to run trimmed material whose cell walls have been damaged. Immediately place the cannabis in the freezer.

To avoid freezer burn, the flowers must be placed in big Ziploc freezer bags between 4 to 12 hours after being placed in the freezer. You can freeze it directly in a freezer bag. However, I think that freezing on open containers keeps the quality higher and preserves the structure of the buds. After 4 to 12 hours, you can place the bud in freezer bags.

I use 2 ounces per bag and make sure that each bag is around 60% full of air. Before starting the washing process, you should let the material defrost for 24 hours. This allows the freezing process to finish and begins to break down cell walls, making it easier to wash. If your material is not frozen fresh, you will have to let it defrost for 48 hours.

First, set up your workstation with two buckets, a filter, some clean water, and your frozen cannabis. You will also need ice, a rubber spatula, and some cheesecloth. I like to use a 16-quart Sterilite container with a lid for my first bucket and a 5-gallon bucket for my second bucket. Fill the first bucket halfway with water and add ice until the water is cold.

Then, add your cannabis to the bucket and stir it for a few minutes. The goal is to get the material as cold as possible without damaging the trichomes. After a few minutes, remove the cannabis from the bucket and strain it into the second bucket. Be sure to leave the ice in the first bucket.

Add more clean water to the first bucket and stir it around to collect any trichomes that may have been left behind. Pour this water into the second bucket as well. Repeat this process twice or until the water in the second bucket is clear. Once finished, remove the cheesecloth from the filter and discard it. Your cannabis is now ready to be pressed!

System Of Cold Water Rinsing

You need ice-cold water to rinse the hash you’ve collected. Rarely is tap water cold enough? I use a 20-gallon container full of ice and purified water. Flows are provided by a 1/4 HP pump connected to a garden hose. I have on/off switches, so the pump may be turned off when not in use.

A pressure sprayer you load with ice or filtered water is an additional option. This is undoubtedly the more affordable choice, but I like the high output of the 1/4 HP pump, particularly when washing the bags at the end, which should always be handled with ice water but no solvents.

bubble hash yields

Preparation For Making Bubble Hash Yields

Step 1: Making Bubble Hash

Set up filter bags within the collection tote, ensuring the bag sizes are compatible. I’m using 20-gallon and 20-gallon bags. Arrange the bags in ascending size. I’ll install it as follows: 45μ > 160μ Configure your agitation vessel as shown below:

Cannabis > Draft ICE > Hashtek Filter Screen > Cannabis > Cannabis > Draft ICE.

Add some DRAFT Ice on top. When preparing ice water hash, we advise using this huge ice. It typically lasts much longer and is recoverable for use in numerous washes. Over the ice, put the cannabis next. All of the cannabis should be covered with an ice covering. Then, until the ice is covered, add water from the Cold Water Rinse System.

While freshly frozen material needs to be washed immediately, dried material must be rehydrated for 15 to 45 minutes before agitation. Because they are accustomed to working with dried stuff, beginners occasionally soak fresh frozen food. It is unnecessary and can make your hash more likely to develop chlorophyll bleed.

Step 2: Agitation

Your objective is to remove the trichomes from the plant material while minimizing the amount of plant material that is broken up. The top-down agitation systems from Hashtek are made to accomplish this. If you don’t have a Hashtek agitator, you can use a stainless steel paddle to stir the drink traditionally.

Typically, agitation cycles last 3 to 20 minutes. I often use fresh, frozen, 10-minute agitation cycles. Be aware that the agitation window before chlorophyll bleed is substantially smaller with fresh frozen.

Step 3: Filtering

I often collect in two-micron ranges:

  • Alternative A: 45-159 Complete Spectrum: This is the bubble fraction I prefer to use when making hash rosin. Only requires three collection containers to be washed, captures the entire profile, and yields the most. Waste is reduced, and the 45 bag is the only one from which you must gather a bubble.
  • Alternative B: Broad Spectrum, 74 to 119 MHz: To remove more of the broken heads you frequently see in the 45, I’ll add a 73 bag if I want to make a clean vaping hash. If you’re in a saturated state, the 46-71 range can be utilized for edibles, lower-grade hashish, or even thrown out.

Because you’ll be filtering once more when you push the bubble into hash rosin, I believe it is usually unnecessary to reduce the fraction for hash rosin further. I would simply dab this as ice water hash for a fraction as tight as a 90-119 first pull fraction (aka flags).

bubble hash yields

Step 4: Rinse

Before collecting, the hash has to be rinsed and flushed. Rinsing is done for three basic reasons. 

  • To make collecting easier, move the hash to a single-bag location.
  • Wash off any froth or water-soluble contaminants that might have become momentarily lodged in the bag.
  • Remove any smaller micron levels that could have become entangled in a hash slurry.

The 160 bags will frequently include a significant quantity of hash, especially when running low on material. Thorough rinsing will assist in elevating the lower micron trichome heads to the proper filter level. Don’t be afraid to thoroughly rinse or flush the hash when using a lawn sprayer set to the “flat” mode. I prefer to rinse it with clean water quite vigorously.

Use it judiciously because this is your last opportunity to clean up the hash. Only use ice-cold water to rinse.

Step 5: Collecting Bubble Hashes

To dry my hash, I employ a Harvest Right Freeze Dryer. They quickly make up their cost. You end up with a darker, frequently lower-quality hash when using air-drying methods like micro planning. Your hash will become increasingly green/brown and polluted the more you wash it. When overly agitated, dried material turns brown, whereas fresh frozen likes to turn green.

It’s up to you how much you wish to accumulate. After squeezing into hash rosin, I dab out of the Peak Pro using the cleanest material, while successive pulls are frequently employed for hash rosin joints.

Step 5: Drying

On your Harvest Right Freeze Dryer, select Custom Setting, and then enter the following information:

  • 45 F Shelf Temp.
  • 24:00 Final Dry

Since the devices operate a little hotter than the preset temperature, the default shelf temperature setting of 55F is too hot for hash. You likely baked the hash at a too-high temperature if you ever notice hard bits in it (that aren’t frozen water from inadequate drying). Before starting the vacuum pump, ensure the material is completely frozen.

Give it a 6–10 hour freezing cycle if it is not frozen. If the trays have frozen, you can reduce the freezing cycle to 30 minutes.


Now that you know how to make bubble hash yields, it’s time to start! With a little practice, you’ll make high-quality bubble hash perfect for smoking, vaping, or making edibles.

About the Author Leroy

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