Ok so the technique definitely needs a little refining but overall the process definitely works.
No I have not managed to create any dry ice like that crazy Russian dude. Although I haven’t tried to. I just haven’t seen any form when blasting out the gas. Not sure how he got so much- but maybe I would just need to crank up the gas. If I wanted dry ice. Which I’m pretty sure I don’t.
So far (as I posted before) my technique is to throw the dry bud in a 2 litre plastic container, which has a hole drilled in the lid about the right size to force/ thread onto the CO2 tank outlet pipe. The container has the bottom cut out and a screen fastened over it with hose clamps. A bucket underneath/around the whole affair.
At the moment the screen I’ve been using is the 160 micron bubble bag. That may change.
For the last run I left the gas on for 15 seconds at medium blast although that did seem like it was probably too long. (Both times I’ve turned the gas up to full I’ve had tragic results involving the bottom of the setup blowing off, which was very messy
).
The buds In the container will agitate violently and quite a lot of powder comes out the bottom into the bucket. Some gas can be seen smoking out of the bottom. After I turn the gas off I shake and sift the material through the bag a bit longer
For this last run I used 240 g of bud and produced 70 g of kief. A near 30% yield is too much to expect top quality I think. Im sure most of my bud is probably not anywhere near 30% thc. I must be getting a fair amount of plant material. I assume I can change that by varying the blast time and the screen size(s).
The 70 g of kief I got would stick together when I warmed it up in the oven last night, but still didn’t really form the soft hash texture that I was looking for.
I took all the kief and sifted it through a 120 µm bubble bag which yielded about 30 g. of supposedly higher grade (?) kief. This process was kind of messy and wasteful and I lost almost 5 g somehow while doing it. The dust clings to the bags and puffs up in the air, sticks to everything, etc. I should have done all my straining at the time of the CO2 blast.
The remainder, which didn’t sift through, I mixed with isopropyl alcohol, shook it, strained it, threw away what remained in the strainer and evaporated off the rest to get this
Then I mixed it with the sifted kief, as well as a half ounce of bubble hash I had around on the shelf, and the kief from my two earlier CO2 experiments. Mixed it all together and warmed it up to get this.
A way nicer texture. Soft and gooey. If anything, maybe a little too gooey.
As for what’s left over I don’t know that there’s enough good stuff left in it to use it for anything, but I’ll let it sit on the shelf for a while and think about it