I learned a fair amount about CO2 extraction this week.you guys probably already know this stuff, but in case this can help someone, here it is:
- True supercritical CO2 extractions are relatively poor yielding for some reason so Apeks suggests performing the extraction at 1,200 psi which is in the high sub-critical range. Expected yield is 10-12%, so fairly comparable to solventless hash.
- CO2 extraction of this sort ( I.e. Keeping the temps low enough to avoid decarboxylation vs. Waters tech which runs at temps that give you a decarbed product) gives you a return with multiple consistencies running the range from a very dry, desiccated looking production the upper separation chamber to a lump of caramel looking consistency.
- CO2 extract does not come out of the machine ready to use. Much of the product has significant moisture and will require baking or simple evap of some sort to get it dry enough so it doesn't sound like bacon on the nail.
- The hash in the pic below is pretty aromatic, very light and fluffy and is full melt on a nail. Processing methods are being experimented on consistency - suggestions are welcome.
-Dabs pretty nice. Taste is solid, aroma is good, potency definitely there in comparison to bho
And the last thing I learned lol
-Always be prepared for an inspection from the Denver FD. We were met at the door going to pick the hash up by a seriously tough FD captain who stopped by for a surprise inspection of Apeks place.... dumb fucking luck right? So while my partner and the engineer wrestled the extract out of the machine, I had a thirty minute discussion with her about medical marijuana. She started out pretty condescending, but she actually came around some when I called her on her comments as to "the typical mmj stoner" ... that wasn't exactly her words, but close enough. I gave her a few things to contemplate.... I've worked for 22 years in facilities that the Fire Department consider some of their most dangerous environments that they have to enter due to combustibles and high pressure retaining equipment. I think she was kind of surprised.