You don’t need to fill the bucket to make this work. In fact, it’s better if you only fill the bucket about half way. The extra room in the bucket gives the dry ice room to move which makes the next step infinitely easier. Fit your 73-sized micro mesh bag over the opening of the bucket and shake the contents around for about 4 minutes.
When the cannabis comes in contact with the dry ice, the low temperatures cause the trichome resins to freeze. Then, when the bucket is shaken, the ice moves against the plant matter and knocks the frozen trichomes off. Lift the bucket up, turn it upside down over your clean mirror or plexiglass and start shaking out as much cold powdery resin through the micro-mesh bag as you can until you can’t shake anymore out. Be sure to give the bucket a good and thorough shaking to displace as much of the resin as possible. Next, use your scraper or card to smoothly scoop up the kief hash from your surface area into a mason jar. For 1 ounce of cannabis, expect to produce about 3.5 grams of kief. You’ll get about 0.5 grams of high-grade stuff with the smaller micron bag and about 3 grams of lesser-grade stuff with the larger micron bags. Repeat the previous steps with the size-160 and 220 bubble hash bags in order to collect three different grades of pure, solvent-free, homemade CO2 hash.
Smoke it, vape it, dab it, infuse it, or bake it into edibles. Supercritical CO2 produces cannabis concentrates that are much safer, cleaner, less toxic and more aromatic than butane hash oil products. CO2 oil is more cost efficient to produce en masse and more customizable in terms of its cannabinoid content for the consumer. CO2 extraction is the cutting edge of the cannabis industry. However, a typical supercritical CO2 machine costs way too much for most people to own and use one of their own at home. You can still make high quality, completely non-toxic, CO2-extracted cannabis concentrates at home with some simple materials, some easily obtainable dry ice and some good organic weed . If you’d like to try cannabis concentrates before you go all-in and make your own, purchase a small quantity of kief, oil, wax, or shatter from your local dispensary and see how your body reacts. Start small and increase your dosage carefully (especially if you’re just trying to get high ). Remember, concentrates are, by nature, a lot stronger than your regular dried bud. That means that you don’t need nearly as much to fly sky high or experience some serious medical benefits. Anyone have any thoughts on what the simplest way to achieve this might be without having to spend thousands of $s? Best I could find was this guy who machined his own set up and used a torch to heat up dry ice in a tube. Only other things I could find on the web were ppl trying to extract illicit substances from various plant matter. But feel like this would be a very interesting tool to have in the DIY kit. The only thing I could find is for pot as well, not that that would change the process. http://skunkpharmresearch.com/affordable-diy-co2-extraction/ Yeah I visited that page too. The simplest method looks to be two CO2 tanks and some kind of siphon to release the CO2 into an empty tank, but still a little unclear on how to go about doing that. are you worried about the extract not maintaining its solubility in the final solution? Even with various THC extracts used for 'vaping', you quickly run in to separation issues with the VG/PG because you're mixing in a supersaturated solution that just. I was all about this some months back but decided I didn't have the experiemnt money and didn't want to risk blowing myself up, lets see here. ok so the cheapest for home use is the "Ocolabs" rig, which unfortunately doesn't recapture the c02 (adding cost) and doesn't have the kind of control of the larger machines, however, keep it simple right? My plan for awhile was to use that a rough schematic (other available diy blueprints and internet resources will familiarize you with what each part is and you can figure it out from their) , and piece it together at home, you'd have a few parts that would have to be made my a machinist but for the most part as long as you aren't dead set in getting it in a small box like the ocolabs rig you should be fine.
If you're trying to extract lipids, regular liquid co2 will work. Liquid co2 takes longer but is more selective than supercritical, which can pull undesirables like sugar, tannins, and chlorophyll because it is such a nonselective solvent. Liquid co2 is comparatively cheap and easy to work with. Just get a co2 tank, fill with herb to be extracted, add the amount of dry ice its rated for (10lb rated tank gets 10lb dry ice) add a pipe screen to inside of valve to filter, then screw it all together. Put it in a lukewarm water bath, to speed the melting of the dry ice. Because its under pressure, instead of sublimating it will turn to liquid in the tank.
Give it a good 24 hours to soak, then slowly open the valve and discharge into a wide tube down into a collection plate.