Higher altitude means you have a partial vacuum. So the low pressure on the out side and the high pressure on the inside are trying to equalize and the lid cant handle it. Thats the easiest way to explain.
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How much volume would you say is lost % wise after step 6 when bring up to room temp? Every time I have tried this freeze step I had too little solvent for it to be effective, going to retry tonight at a higher ratio, thanks
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It varies. You tend to lose a bit of solvent while in the freezer. But we like to have around 2/3rds when we start the crashing phase. And 1/3rd or less when we tighten the lid
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80-100psi
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Hey i just wanna remind people about pressure pots for painting. They are generally rated to around 100 psi at least, you can fit quite a few Mason jars in them, they are cheap, coated with pretty solid materials, and you can just hook heating pads to them. I’m currently doing a batch that I pressurized with a nitrogen tank. Will report back…
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a centrifuge works well and with no additional solvents
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most recrystallizations ive seen for thca in white papers use evaporation of the solvent to drive supersaturation instead of the hot solvent method. i always thought if the shift was too fast the thca would just crash out as an oil. i mean u can control and slow cooling too but ive never seen thca recrystallized in a day lik u can do with simplier crystals
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Do you have a tech on this method? How much rcf and what solvent matrix was used?
Would a manual centrifuge work for separation? Could I also achieve good separation with terp sauce with smaller crystalline?
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- YouTube 1hour07min. is all about dem gs son. if u can keep them at that g force for that long then yes. if u wanted to separate small amount a stationary bike powered one might work but even that would hav to be painstakingly engineered and balanced so that it doesnt break itself
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i can link u some patents but patents all arent of equal value. most r only good for the broad strokes
http://actachemscand.org/pdf/acta_vol_29b_p0379-0384.pdf
last ones the best
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Amazing info man thank you very much. Is there a brand or specific centrifuge you would recommend? (Currently working in the medical market.)
If the isolate is decaboxylated could this be a more efficient way of making THC distillate?
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lol i just posted a paper about that in a different topic
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I haven’t found any increase of crystallization from using the vessels
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How long do you pressurize your jars in the pressure canner?
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Leave more solvent in if you are applying pressure
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It’s not really for a “increase.” It’s more in my opinion to speed things up…where as just using jars takes a little longer.
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Its more about safety and terpene retention than it is increase of crystallization.
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Which alkane is preferred for washing the crystals ?
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Pentane would probably be best.
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