You want these butane fumes to be quickly carried away. Find a location outdoors with a decent breeze.Again, push it on as securely as you can by hand. (Full pipe estimated at 1.5 oz capacity, but this is a guess. Fill the pipe up with plant matter that has been pulverized into a coarse powder.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.In the other end cap, drill a group of 5 or 6 small holes clustered in the center (like a pepper shaker).This hole should be correctly sized to snugly receive the little outlet nozzle of your butane can. In one of the PVC end caps, drill a single small hole in the center.The primary use for this technique is to render leaf into a form more appropriate for medical use by removing other tars and ash-producing material from the psychoactive principals. With a perfect extraction (this method will not approach 100%), that would mean less thanĪ gram of oil from each ounce of leaf and between 1 and 3 grams of oil from each ounce of high-potency bud. Cannabis leaf and bud varies in THC content from 0.5% to over 10% for extremely high potency bud, with the average for normal quality material in the 1-3% range. Note that the amount of honey oil resulting is very low. 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. Even unsmokable shade leaves produce a wonderfully clean and potent gold oil with this method. Threaded PVC is not necessary.įor reasons not yet clear to those of us investigating these things "unofficially," butane (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. The only other thing needed is about $2.00 worth of PVC pipe: a section 1.5 (one and a half) feet long and 1 & 3/4" diameter (outer diameter I believe), and two end caps. It uses totally over-the-counter butane gas (8 oz can, camping supply store, ~US$4.50) as the extraction solvent, and requires nothing even remotely suspicious or difficult to purchase. This method has its basis in a fascinating industrial extraction method known as Supercritical Fluid Extraction. See Rash of hash-oil lab blasts prompt warnings.įor 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. In October, 2013, multiple incidents of explosions related to indoor butane hash-oil production during harvest were reported. In early 2013, more warnings about the dangers of indoor honey oil preparation appeared in news reports and a Wired Article: How Hash Oil Is Blowing Up Across the U.S. See also 's warning page about hash-oil extractions.
Releasing flammable gasses indoors could result in serious injury or death. There are reports of people smoking while using butane (to fill lighters, etc) and getting badly burned. The technique MUST be done outside and away from any source of spark or flame. WARNING: The process described here can be very dangerous because it involves flammable gasses.
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