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This is the head cheese's account

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  1. TJ

    Hey, Skunkpharm! I was wondering if there are any solvents that should not go into a vacuum chamber with silicon gaskets? I have seen people use the vac that I have, but I remember reading somewhere that you have to be careful purging certain solvents as they can degrade the materials in the chamber faster. Any truth to this? I'm using 91-99 ISO and 200 proof ethanol (different runs). Also, thanks for the incredible articles and tutorials here. Finding out about this site has been incredibly helpful in my extracting endeavors.

    Reply
  2. kev

    I read somewhere that it takes 8 minutes for all of the good stuff in the leaves/buds to fully be extracted or absorbed into the alcohol, but that heat helps. Personally, I start off with everything at -32f. After the wash, but before I run the product through a paper coffee filter, I use a metal coffee filter so that what's left is nothing but liquid and trichomes. At this point, would placing the jar of product into a pot of hot/warm water do anything to improve or worsen my product?

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  3. chris

    I am new to iso extraction . In your article you said if the extract is for vaping , you filter the material after a 20 sec wash into a Pyrex plate, evaporate the alcohol then put it in a water bath at 140 degrees for 30 min to an hour. Is that now ready to vape or is there another step after that?

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  4. redturtle984

    https://mobile.twitter.com/pancakespoons/status/763020983783399427/photo/1 This is a photo of extract dissolved first in isopropyl alcohol, then tap water is added slowly until the nearly pure essential oil rolls out of the mix like a worm. Small amounts of oil are left entrained in the white iso/water/terpene/wax layer. That layer is drained and frozen to recover trace amounts, and the oil "worm" is boiled in water then frozen. The water as ice is easily removed and a vacuum chamber procedure used to remove all water. Isopropyl alcohol is listed as being fatal to humans in doses as little as eight ounces. This process normally takes an ounce or so of iso for each batch of a few grams as shown. Iso is widely used in pharmecutical processes because of the inherent historical safety - only cases of extreme suicide attempts account for serious poisonings and those are pretty rare because of the pain involved in attempting this. In my process the iso is completely evaporated under vacuum. Trace amounts of isopropyl alcohol are easily detectable by smelling hot extract. The nose knows!

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  5. Ed Snowden

    Great info. Have some questions regarding a qwiso extraction of pressed bubble hash and pressed dry ice kief. For material prep, I am thoroughly drying material in a food dehydrator, and then both breaking it up manually and using a cusinart. The kief readily breaks down into almost powder, yet the bubble is much more of a pain and tends to stay in pebble form, especially the more oily and gooey bubble. 1. Is there a good way to prep the bubble or is it the case where I just do my best and then use additional agitation and possibly stirring to achieve complete dissolution of the bubble in solution? 2. Is there any advantage gained by freezing the kief or bubble prior to extraction? 3. I have half gallon mason jars for the extraction, and 99% iso. What is an optimal ratio for kief to iso? for bubble to iso? 4. Once the mixture is in the mason jars and sealed, is gentle shaking for approx 3 min (I am guessing this will be the time for kief, and that more may be required for the bubble) enough or is stirring a good idea? 5. When you are pouring out the mixture through a coffee filter, whats a good way to set this up? I was thinking of just putting the coffee filters over the top of the mason jar and securing in place with thick rubber band and inverting. 6. Is there any advantage gained by winterizing kief or bubble in an iso solution? 7. How much of a difference will I notice between doing a simple blow dry and using a vac pump? 8. My local grow shop has heating pads intending for seedlings, they say 10-20 deg above ambient temp, is this good for the drying stage, or is a 140F pad necessary? 9. For storage, what do you recommend? I was thinking of wrapping in wax paper, putting in tupperware, and then freezing it. Thanks for taking the time and spreading great knowledge, it is much appreciated!

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    1. skunkpharmresearch

      1 I get good results extracting the granules of bubble as is. If you agitate regularly to keep the boundary layers removed, ISO will readily dissolve the resins, and leave behind non polar waxes and the like. 2 No advantages to freezing before extraction and that will slow down the process. 3 Probably around 3:1 or greater. The Iso will saturate at somewhere around 1:1 molar, but achieving 50% mostly happens in heaven unless you are reflux boiling. I would plan on 30% as a starting point. Even less saturation means more extraction speed but , at the cost of more alcohol and more time evaporating it off. 4 The reason for the frozen quick wash with green material, is to avoid chlorophyll pickup, which you ostensibly won't have with kif or bubble, so you wash it as long as it takes to dissolve the hash. I would recommend a second wash to glean anything left behind. 5 I like to just invert the jar and dump it through a wire strainer, into a restaurant size coffee filter, in a coffee maker basket. I use a French Chinoise strainer, with about a 10mm mesh, which is stout enough that I can press the alcohol out of the material. 6 Isopropyl is not highly polar, so it isn't prime for winterizing. Ethanol or Methanol would be better. Iso also doesn't extract as many non polar waxes as the simple alkanes like butane or hexane, so winterizing is less needed. 7 Lots of difference between a vacuum purge and a blow dry. Even in a thin film, a blow dry requires more heat to keep the film liquid enough for the solvent to escape. 8. Depends on what you want to make. We run our mat at 115F to produce shatter. 9. No wax paper, unless you want wax in your oil. I store mine in a sealed blue glass container. Peace, GW

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      1. Ed Snowden

        Thanks for answering my questions, helps a lot. At the moment I don't have easy access to eveclear (Ca has it banned, but the local grow store sells 99% iso by the gallon, lol). I'm going to go ahead and get a vacuum pump, and wanted to know what you think would be good quality/choice? I'm also not exactly clear on what the ideal steps are. If I'm using a vacuum pump, is this the right idea: 1. Reduce material by filtering winterized solution through coffee filter onto pyrex plate, and then placing it on top of a reptile heating pad or similar, and waiting for most of iso to evaporate before scrapping up material, placing into a glass container and into vac chamber? Is the reduction on heated oil necessary when you have a vac chamber? Do you have any tips for efficiently processing larger amounts of material? Any success in finding a good surface that is significantly bigger than the average pyrex plate? I was thinking of winterizing larger volumes of solution and then reducing it at once.

        Reply
        1. skunkpharmresearch

          Iso will work, or you can have the ethanol shipped to you from http://organicalcohol.com/store/ I have had good luck with the CPS VP6S single stage vacuum pump. You can cold boil the alcohol solution under vacuum with out heat, but you will need a cold trap to keep the alcohol vapor out of your pump crankcase, or change your pump oil several times as the oil level reaches high limits. A rotary evaporator would be the way to process large volumes, but a rectangular casserole dish in a vacuum oven, has more area than a pie plate.

          Reply
      1. adam

        one more quick question, let me see if i can word this right. which oil u think would work best for oral consumption? hexane, butane, etc.....

        Reply
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