Marijuana Horticulture: The Indoor/Outdoor Medical Grower's Bible

temperature to about 41°F (5°C).

Use a large spoon or flat stick to stir and to sink the cannabis until it becomes wet Continue to stir the mix by hand until completely soaked with water.

Rub wet, cold leaves between hands to knock off resin glands into water.

Mix with mixer for 15-20 minutes. Do not let the mixer’s motor or electrical wiring touch water. It could give you the shock of your life!

Periodically rinse the paddles with cold water.

Let the mixed-up slurry sit for 15-20 minutes to allow resin to settle through screens.

If foam develops, spray and wash away so you can see what you are doing and prevent foam from depositing resin and debris on bags.

Spray water on the foam to burst the bubbles.

Keep the wet leaf. Put it in a bag and freeze. If the material is good, you can make another extraction!

Pull up the top “work bag,” taking care to prevent unscreened material from falling into the next bag.

Remove the first bag; we call it the “work bag” because it contains the bulk of the leaf material. You can compost the contents or freeze the material to separate again.

Spray and rinse away foam and debris from the wet hash.

Once drained, set sieve on top of absorbent paper towels and rags before removing wet hash with a spoon or plastic card.
Start Second Run
Mix and separate again
    Now it is time for the second run. The second run is done just like the first, except there is no foliage to deal with!
    Here are the results. We started with 100 grams of pretty good leaf from a ‘White Widow’ strain. We used water extraction with 15 sieves to separate the resin and plant matter. Below are photos of the wet resin extracted from 150?, 120?, 104?, 73?, 66?, 45?, 43?, and

You can see the greenish water filled with golden-colored resin glands.

The last of the water in the bucket is loaded with pure resin! The resin in this water will be separated in the second run.
    25μ bags and the dry resin along with the dry weight of each. We found that all hashes were of fair quality but smokable. The bags with a mesh of 45,43, and 25 were also good to smoke, but still not the best. The hashes that were separated with the 120?, 104?, 73?, and 66? sieves were the best, both in quantity and quality.

150μ bag = 0.7 gm

150μ bag = 0.7 gm
First Run

Second Run

    Toss the separated hash on a silkscreen. Lightly press it from the top while holding a paper towel under the silkscreen to absorb the excess moisture.

120μ bag = 1.9 gm

120μ bag = 1.9 gm

104μ bag = 3.1 gm

104μ bag = 3.1 gm

73μ bag = 1.9 gm

73μ bag = 1.9 gm

66μ bag = 1.5 gm

66μ bag = 1.5 gm

45μ bag = 0.3 gm

45μ bag = 0.3 gm

43μ bag = 0.7 gm

43μ bag = 0.7 gm
    Look at the water line inside the bucket. You will see a fine sheen of oil or contaminant here or floating on top of the water if foliage contains any residues.
    Do not squeeze wet hash in sieve bags. It is too early. Wait until the hash is dry to press, so resin heads will not be bruised or damaged.
    This synopsis was adapted from Bubble Man’s postings on www.overgrow.com (now closed).

25μ bag = 0.4 gm

25μ bag = 0.4 gm
25μ bag - most often full of sativa full melt and physically the smallest bag
45μ bag - nice head hash - most often consistent and yellowish to white in color
73μ bag - full melt all the way
120μ bag - good bubble
160μ bag - best for big headed indica glands. Debris can also settle here
190μ bag - removes the majority of the big debris out of the settling process
220μ bag - is the first filter where all the big stuff stays

The color of water should be light green, which signifies all the hash and impurities have been cleaned out Dirty water contains more contaminants.

Here are the different grades of hash from two runs using 14 bags.
    The hash labeled with black letters is first run. Red numbers signify second run.

We loaded up the first run into separate vials; each is labeled with the micron (?) size used to make the water extraction.

Once pressed quickly by hand, the hash is ready to smoke. We tossed it into a bong on top of a stainless steel screen.

Let’s see what happens to this wafer of fresh hash when we apply a little flame.

Voilà! It bubbles, which means it is very pure.

The second test of purity is the amount and color of ash after the burn. White and clean-pure!
Washing Machine Hash
    On a recent trip to the tropical region of Colombia, I was able to record how expert grower friends made hash in volume. They learned this