Thca isolate/isolish is better decarbed under vac.
Decarb under pressure is about retaining terpenes.
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I thought so too and the theory is right. But, I have better luck fighting things like oxidation and clarity remains on point. There are many ways to skin a cat and thatās what is working for me right now lol.
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If you apply vac before heat, and keep sucking the entire time, there should be no O2. We are decarbing 10-12kg at a time under vac (and similar volumes of non-isolate under pressure)ā¦not seeing oxidation in either.
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ive been decarbing in miners the last year for retaining terps but i might just try the vac oven.
do you get a bunch of THC ādistillingā out of your containers at decarb temps and pressures?
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Nope. Certainly get terpenes out when decarbing āisolishā under vac at 100Cā¦but thatās the goal.
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Nice.
At 120C we start to see THC distill into our oven trays.
You sure itās not just splashing?
Do you have a vac gauge on there?
How hard are you sucking?
Can you see endpoint in vac level?!?
Anyone tried these critters?
That just looks like the duqenois-levine test repackaged and with a potency chart
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Yep, not just splashing. Pulling somewhere around 29.5 inHg on a tray with a high SA/V ratio.
I should mention this happens with BHO, not THCA, so there could be a codistillation of some terpenes with cannabinoids that is causing this
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Perhaps youād prefer āyou have liquid entrained in your vapor streamā?
Iād simply argue youāre actually seeing āsplashingā if you look close enoughā¦
Those breaking bubbles are absolutely throwing liquid around in there. Iād expect to see cannabinoids all over the walls/floor/ceiling and cold trap.
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Could be.
Iāll have to repeat this with a loose lid on.
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Iād avoid decarbing under vacuum, personally, but this is likely more to do with decarb temps than anything else, but it all boils down (badum tssss) to vapor pressure in the end.
We had a guy from an analytical lab tell us to decarb under vacuum after we had already cooked our resin for 8+ hours and they kept telling us it wasnāt fully decarbed yet. So we didā¦ Iād like to avoid others running into the same problem that (predictably) caused. Those analytical labs folks can be kinda funky some times. The things competition can do to a guy.
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Have you got any qualifiers there?
Decarbing THCA isolate or approximations thereof under vac makes great sense.
Decarbing BHO/EHO/Rosin under vac does not (imo).
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Either one results in measurable loss, one much more than the other tbf.
My main point was that I found the comment from the analytical lab entertaining, they seem very desperate for business, and yet very poorly informed about the science of cannabis.
Do you think that decarbing under vac could take longer than under pressure because you are relying mostly on conduction instead of a combo of convection and conduction to deliver heat to the material?
Probably depends on implementation & input material.
Assuming āisolateā:
Vacuum oven, vac vs no vac, maybe.
Jacketed reactor with stirring? Would expect fairly similar, except vac means no O2 == win imo
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Would you still be concerned with O2 if you vacuumed down the decarb apparatus before backfilling with inert gas and performing pressurized decarb?
No. Why be concerned about O2 when there is none?
Response above was āunder vac vs notāā¦in a vacuum oven or reactor. Neither of which are designed to handle pressureā¦.
Some may consider the CO2 inert enough
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