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THCdude
Peace
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Feeling brave? I ripped this post out of overgrow.
This particular method is DANGEROUS!!!!!!!!!!!
For those of us who never quite got over the loss when fine-quality hash oil disappeared from the market, and for cannabis connoisseurs of all ages
everywhere, it would be my honor to write up what has to be the easiest,
highest-yielding and most selective cannabis oil extraction method available to date. This method has its basis in a fascinating industrial extraction method known as Supercritical Fluid Extraction. It uses butane gas as the extraction solvent-- Note: Some butane fuels are cleaner than others. Be safe and choose a butane fuel that has been recommended for jet torch or flameless lighters. Recommended brands include Colibri Butane, Prometheus Butane or Dunhill butane. They seem to be the cleanest and work better than others. Additionally, It’s recommended that you never use Ronson Brand butane or most of the other brands normally found at a drugstore. The only other thing needed is about $2.00 worth of PE (polyethylene) or PP (polypropylene) pipe (NOT PVC): a section 1.5 (one and a half) feet long and 1 & 3/4" diameter (outer diameter I believe), and two end caps. Threaded pipe is not necessary.
For reasons not yet clear to those of us investigating these things "unofficially," butane and CO2 (and perhaps other gas/solvents with similar ultra-low-boiling properties) selectively solvate the desirable fraction(s) of cannabis oils, pulling out only a beautiful amber "honey oil" and leaving the undesirable vegetative oils, waxes, chlorophyll, etc. behind in the plant matter. Even unsmokable shade leaves produce a wonderfully clean and potent gold oil with this method. I have every reason to suspect that this would work splendidly to extract a super-strong and tasty oil from gross, unpalatable "schwag" commercial pot too, and of course, the better grade of herb you put it in, the better the resulting oil.
METHOD:
1) In one of the Pipe end caps, drill a single small hole in the center. This hole should be correctly sized to snugly receive the little outlet nozzle of your butane can.
2) In the other end cap, drill a group of 5 or 6 small holes clustered in the center (like a pepper shaker).
3) After putting a piece of paper towel or coffee filter inside it for filtration, put the end cap with several holes on one end of the pipe. Push it on there real tight. This is the bottom.
4) Fill the pipe up with plant matter that has been pulverized into a coarse powder. You want it filled, but not packed down. (Full pipe estimated at 1.5 oz capacity, but this is a guess. I did not weigh it.)
5) Place the top end cap on the pipe. Again, push it on as securely as you can by hand.
6a) Find a location outdoors with a decent breeze. You want these butane fumes to be quickly carried away. Seriously.
6b) Mount the pipe (single hole-side up) over a vessel that can hold 300mL+. Beakers are perfect. A lab stand and clamp are ideal for the mounting, but a regular shop clamp or anything that can hold it sturdily is fine. (Avoid metal if you can, to reduce the chance of sparks.)
Position the bottom end of the pipe immediately over (1-2") the receiving
vessel to eliminate splatter loss.
7) Turn the butane gas can upside down and dispense the gas into the pipe via the single top hole. A whole 8-oz can takes about 10-12 seconds to evacuate. Be brave, swift, and careful. A spark at this moment would spell disaster since you have basically created an incendiary explosive device that is leaking.
8) When you've exhausted the can into the pipe, back off to a nice distance and let it do its thing. The butane moves down the pipe, extracting the cannabis as it goes. When it gets to the bottom (~30 seconds after dispensing), it begins to drain into the receiving vessel. Notice the pale, glowing yellow-green-gold hue of the extract. It is obvious no chlorophyll was pulled out of the herb.
Over approximately five to eight minutes, the butane extract will finish draining from the pipe to the receiving vessel. Maintain caution with the pipe, however, since there is a lot of residual butane still evaporating from within the pipe (notice the stream of fumes coming from the top hole).
When it slows down to a drop every few seconds, you can tap on the top hole with your finger and it will help push the last of the liquid butane out (or one can gently blow into the top hole to do the same thing). Remember, NO SMOKING, unless you wish to immolate yourself in grand fashion.
Being very low-boiling and volatile, the collected butane will likely begin boiling at ambient temperature. The receiving vessel will gradually frost up as the butane cools it down, slowing down its rate of evaporation, but you can speed this up again simply by holding it in your hands.
A better way is to set it in a saucepan containing a little bit of warm water. Watch the butane start bubbling madly with the increase in temperature and marvel at its low boiling point. Again, be doing this outdoors with a nice breeze! It takes about 20 minutes or so to allow the butane to evaporate, or quicker if you help it along. You are left with a deep amber, almost orange oil of amazing purity.The best way to collect and store the oil is probably to let all of the butane evaporate off and then redissolve the oil in some anhydrous or high-% alcohol, and then pour this into a vial and let it sit out for a day or two to allow the alcohol to evaporate.
Trying to transfer the oil into a small container while it is still solvated by the butane is too risky. I learned the hard way about this, thanks to the volatile temperament of butane. I had filled a vial almost all the way to the top and was preparing to drop those last couple drops in, so that cleverly, I could let the last of the butane evaporate from the vial and the oil would all be neatly contained. But when the last drop hit the mother lode in the vial, it changed the temperature of the solution in the vial upward by a hair and it all "superboiled" out of the vial and onto my fingers, which of course startled me and caused me to drop the vial. I suggest dissolving it in alcohol as I mentioned above. If you can get pure or 99% isopropanol (isopropyl), use it, because THC's photosensitivity reportedly does not occur in isopropanol.
The final product is a deep yellow-amber oil of the highest quality, incredibly pure and potent. I remember well some of the prime "honey oil" hash oils that hit the market in the late 1970s, and this stuff stands up to (if not exceeds) any of them. It's amazing how this method extracts only the good fraction and leaves the junk in the weed.
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"We must be the change we wish to see in the world" Gandhi
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Total Posts: 2,303 | Joined Sep. 2001
| Posted on: 9:44 am on April 2, 2002 |
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Clueless wanderer
Humming? From My Closet? Are You Sure?
(2,587 posts)
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 IGNORE POSTS FROM Clueless_wanderer
An excellent post.
The printers are going to be screaming.
(Edited by Clueless wanderer at 4:30 am on April 4, 2002)
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ahh......cradled in the arms of bliss.
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Total Posts: 2,587 | Joined Feb. 2002
| Posted on: 4:13 am on April 4, 2002 |
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Clueless wanderer
Humming? From My Closet? Are You Sure?
(2,587 posts)
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IGNORE POSTS FROM Clueless_wanderer
Ive just tried this method.
I used a cereal box half full of plant matter. I put it in the blender then loaded the pipe.
about 3/4 cup of liquid came out the other end.
When the butane had evaporated there was a little oil in the bottom of the tin. The amount was that small that after heating it i couldn't get any to drip out of the can.
I got a book of rolling papers and cleaned the inside of the can. I got 7 saturated papers from the whole process.
It is a very clean pleasant smoke, not mind bending.
I would do it agian but with at least 2 cereal box's full of plant matter.
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ahh......cradled in the arms of bliss.
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Total Posts: 2,587 | Joined Feb. 2002
| Posted on: 4:34 am on April 21, 2002 |
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Ice
Ice Ice Baby...
(718 posts)
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IGNORE POSTS FROM Ice
I don't understand what you did...cereal box? Blender? Only enough for soaking papers with?
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Nobody's perfect... well, there was this guy, but I killed him. Alcohol and calculus don't mix. Never drink and derive.
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Total Posts: 718 | Joined Dec. 2001
| Posted on: 7:46 pm on April 23, 2002 |
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Clueless wanderer
Humming? From My Closet? Are You Sure?
(2,587 posts)
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IGNORE POSTS FROM Clueless_wanderer
lol.
The cereal box was to inform on the quantity of plant matter i used. The blender was used to make the leaves and shit into a powder, which then i loaded into the pipe.
The soaking papers i thought spoke for itself. The papers were reffering to the amount of oil i managed to scrape from the side of the receptical. The point i was trying to get across was the large amount of plant matter needed for the minuscule amount of oil this process creates.
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ahh......cradled in the arms of bliss.
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Total Posts: 2,587 | Joined Feb. 2002
| Posted on: 6:02 am on April 24, 2002 |
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Ice
Ice Ice Baby...
(718 posts)
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IGNORE POSTS FROM Ice
See, when you were talking about only being able to soak up some papers with that amount, I was thinking "no way"! That's why I asked.
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Nobody's perfect... well, there was this guy, but I killed him. Alcohol and calculus don't mix. Never drink and derive.
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Total Posts: 718 | Joined Dec. 2001
| Posted on: 5:34 pm on April 25, 2002 |
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Clueless wanderer
Humming? From My Closet? Are You Sure?
(2,587 posts)
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IGNORE POSTS FROM Clueless_wanderer
Im glad you asked, i don't always get my point across as i intend to.
"No way" is what i thought when i saw the tiny blob in the bottom,lol
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ahh......cradled in the arms of bliss.
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Total Posts: 2,587 | Joined Feb. 2002
| Posted on: 10:14 am on April 27, 2002 |
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