Ahh Just the man I need to have speaks with Morning GW I have some older weed that has been jarred and stored with humidity packs 62% for quick some time in cool dark place,under 65degs . My question is I want to make oil out of it it is too old to smoke (I should have froze it but no room. ) OK I don;t want to use everclear , too much would take Gallons to do, but was wondering what can I use safely as a solvent to make oil to use as a topical ? I know I can use light aliphatic naphtha but is there anything else that can be used cheaper?
Any idea best place to order 5gals?
If you've treated it right it should last a long time, though it develops more bottom end, sort of like the difference between a clear, versus cloudy, versus amber trichome at harvest. I would extract a small sample and see what you have.
Excessive bottom end material still makes good sleep meds or topicals, due to the high CBN content.
Don't use naphtha. Naphtha is a blend of molecular weights that includes the boiling point range of benzene, a know carcinogen.
Class III butane/propane in a close loop would be my first choice.
Class III Pentane works well in leu of a closed loop system, but it is expensive.
Hexane works but is a Class II solvent with more limited tolerance for residuals. I've used it for both extractions and separations, but choose Pentane if given a choice.
Class III Heptane is easy to get and cheaper, but harder to purge because of its higher 98.4C/209F boiling point, but you can add salt to the water.
Maybe I would be better off with 99 ISO by the gallon Dang shiits gone up in price
Do I infer that you have about 5 gallons of aged material? If so you could do it in batches with ethanol and recover a high percent with a reflux still for the next run, so use less than 5 gallons.
Class III 99% Iso works well and if your're going to use it as a topical, there is less concern about purging limits. I just evaporate off the Iso and don't try to recover it because of the explosive peroxides it can form under the right conditions.
We also did a Pentane wash, where you remove the polar and water soluble elements by reducing the alcohol down to manageable levels and then mixing it 1/3 concentrate mix, 1/3 Pentane, and 1/3 brine. Shake it well and let it separate in a separatory funnel, bleed off the bottom layer and wash a couple more times with brine, and then distilled water before further processing the top layer.
Pentane boils a round 36C/97F, so adding a small amount of distilled water will raise the boiling point enough to easily remove the residual Pentane below levels of concern.
https://graywolfslair.com/index.php...ce/10-3-pentane-hexane-heptane-and-brine-wash