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iso purge cannabis

iso and a slow cooker

pharmaseed
Stinkyguy420
Graywolf

Depends on the slow cooker. Many don’t have variable temperature controls beyond low, medium, and high.

I use an electric fondue pot full of canola oil like a double boiler, because it has good temperature control. Deep fryers usually also have good temperature controls.

I just set my container of oil to be cooked off on a jar lid to isolate it from the bottom in the oil bath. I use a mercury lab thermometer and set the oil temp at

230/240F. A good candy thermometer will work as well.

I cook it until all bubbling activity stops, even if I swirl the container in the oil or poke around with my trusty scientific grade bamboo skewer or chop stick.

Almost all of my oil goes into oral meds, so take this extra purge and decarboxylation step with a grain of salt.

When I am extracting with ISO, I also add Ethanol (190 proof Everclear) to the mix and cook that off as well. It boils at a higher temperature than ISO and helps dissipate it, once it reaches azeotropic balance.

pharmaseed
pharmaseed
Graywolf

Interesting question, which I am organizing an experiment to try and sort out.

So far it looks like oil from buds usually has a higher viscosity than oil from leaf. It also looks like to some degree, viscosity is strain specific and that you can affect viscosity some by processing.

I have just set aside two early-mid harvest (80% clouded trichomes) God Bud ladies for the experiment and will extract oil from various mixtures from the two and compare viscosity. I will post the results when I’ve completed the experiment.

I currently make an oral runny leaf oil out of mixed leaves and popcorn, by cooking the BHO extraction in a 240F oil bath until it is bubble free. It varies from about 30 weight oil to about 250 weight depending on the strain and the ratio of popcorn.

pharmaseed
Graywolf

I have to titrate every batch, but just start with one drop.

Using my decarboxylated

70% BHO mix, on average it takes about one drop for a low tolerance person and three drops for a high tolerance person.

Test results show more tolerance on the upper end than the lower one. One drop is more likely to totally discombobulate a low tolerance person, than a double dose is to do more than make a high tolerance person drowsy.

Stinkyguy420

It does look golden, stink!

It looks thick, how’d ya end up workin it?

*Never mind on that BHO tincture from my last post as my friend dealing with cancer is eating just fine. I plan on batching it up with butter and veg oil.

I’m thinking about doin some oil runs with some Ethanol and slowly reducing the last little bit of alcohol by evaporation or extremely low heat. Then, not letting the last bit of alcohol escape, fill some dropper bottles.

bud good
bud good
bud good
Inuit

When I am extracting with ISO, I also add Ethanol (190 proof Everclear) to the mix and cook that off as well. It boils at a higher temperature than ISO and helps dissipate it, once it reaches azeotropic balance.

Ummmm, sorry, but this is not correct. Ethanols BP is 78.4C while isopropanol’s BP is 82.4C, so the ethanol will be gone before the ispropanol is.

I used to use ethanol exclusively for my oils, but have recently determined that 99% or greater iso works really well. If you’re not impatient, it will all dry out well, and a few drops of ethanol can be added to reduce viscosity and make it more liquidy.

Graywolf

Ummmm, sorry, but this is not correct. Ethanols BP is 78.4C while isopropanol’s BP is 82.4C, so the ethanol will be gone before the ispropanol is.

I used to use ethanol exclusively for my oils, but have recently determined that 99% or greater iso works really well. If you’re not impatient, it will all dry out well, and a few drops of ethanol can be added to reduce viscosity and make it more liquidy.

You are absolutely correct! My error on Iso boiling point, thanks for catching it.

My memory did not serve me well and Iso does have a higher boiling point than Ethel. In my ancient, befuddled, and demented brain, I remembered Isopropyl as being between Methanol and Ethanol in boiling point.

The point is still valid however in principle. Because of azeotropic equilibrium. The ethanol will help purge the remaining Iso. A better choice might be a few drops of water to bump the boiling point up even further however, for the reasons that I originally stated, but incorrectly supported.

Good idea on adding a few drops of ethanol to keep thick oil flowing. It takes less than 10% by volume and flashes off quick. If you keep the alcohol percent low enough, because of the cannabis oil dilution, even 190 proof tincture is no longer 190 proof, or a high enough proof to burn the tongue when used sublingually

My BHO sublingual stays liquid at ambient, and contains no alcohol, which many of the patients I support prefer or insist on.

Here is a picture of a batch of raw oil before adulterating, sloshed before cooling to show color.

Hey guys i was wondering if anyone out there has ever tried using a slow cooker aka a crock-pot to cook off there ISO. I have never done a oil run before…