Back to the kitchen laboratory.
I took the process I documented a few weeks ago 1 step further, maybe 2, in quest to make CCO with
NO heating to make naturally decarbed oil. Can't call it SAP like Gigi's, small batch turned out much thicker than prior large batch.
Changes from last time:
>buds were not decarbed in oven first
>1st wash processed without still so temp never above 71 degrees.
Started with 39 gr of Black Cherry Soda that's been curing for over 3 months.
I did 3 washes this time and processed each separately. Color doesn't show well in photo, but 1st wash (left jar) is golden, 2nd and 3rd washes very green. Each wash was 750 ml. First 2 with chilled alcohol, 3rd with room temp. 3rd was unplanned, but inspecting buds after 2nd wash I still saw little bits of trichomes, so added 3rd wash. After 3rd wash I still found stubs that may have contained more oil, but I doubt there was much medicine in them. Trichs are made of cell like any other part of plant, just clear so it looks like pure oil. I would expect there to be a remnant of cells and that's what I think I saw. Also, according to what I've read the medicine is produced in the heads. The heads were all gone after 1st wash, so I think most of the good stuff was in 1st wash also.
1st wash chilled overnight to 5 degrees and filtered 2 more times to remove waxes. Did that for other washes too. They got clearer but no less green.
1 fifth of everclear about to go up to the angels. Other 2 washes were processed in still to reclaim most of solvent, but 1st wash all went into evaporator without heat. Still heated others to about 170 degrees, 1st wash stayed at 71 degrees throughout 8 hours 'cooking' down.
Almost done, CCO starting to separate out.
Final yields from each wash in order: 4 gr, 1+gr, <1 gr. That's more than I expected for 3rd wash, but as I explained above I don't think it has same concentration of cannabinoids or terpenoids. We'll find out in a few months when decarbing is done.
p.s.: I have been searching for published data on natural decarb rates at room temp. Can't find any other than with heat. If you see anything please share. Thanks.