We exact CBD via Co2 with great efficiency. To an extent more than expected, CBG does not extract with the same parameters. Does anyone have any experience they’d be willing to share?
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Oregon CBD says right in the cbg literature 15psi is needed for co2 and recommended ETOH as more suitable method for extraction.
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CBG is a decent bit less soluble than CBD in CO2 at all pressures/temperatures (see attached table of consolidated data from Brunel et al. papers). Without knowing what you’re currently running, all I can say is try cranking up the pressure and temperature to at least 2500 psi and 120 F (or as high as you can go with your equipment) and increase run times by 1.5-2x.
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