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there are two things in play here. 1)Iso absolutely picks up more fats that ethanol! so you get a bigger pile, but no increase in actual cannabinoid yield. 2) if you're in a state where your everclear is 150proof not 190proof. the added water will also lower your yields...

"Stable" is also used to indicate that the product does not have a tendency to change form on you. ie go from shatter to butter or sugar. check out https://www.reddit.com/r/CannabisExtracts/comments/84z2v9/what_makes_crumble_and_shatter_different/

Co-extracted fats and waxes .... which are not soluble in cold ethanol. They're also not particularly soluble in cold butane, so many folks just chill their primary solvent instead of doing the second solvent winterization. I've hit 92% THCA in a winterized BHO (== 80.7% THC). Non-winterized...

@OldHead You asked earlier what "stable" meant. it is a measure of viscosity. You will find "viscosity" is often misused on forums more "stable" == more viscous == less runny. From what I'm reading you are absolutely on the right track. Assuming all else is equal, the final consistency of...

:-) must be nice.

When I looked at the problem 3 or 4 years ago, doing it right looked to mean $100k. I had a buddy who was in fact an analytical chemist, and I figured having him up my sleeve, I was probably good to go. He ended up getting into cannabis testing, so I didn't. I knew better than trying to...

That GC is not an unreasonable place to start, and so long as the operator gives a couple of fucks about what they're doing, it will give reliable potency results. OR requires statistics to prove that each operator is reliable, as well as stats to prove the lab as a whole is good to go...

IMHO, the SRI GC's are NOT toys, and should be up for the potency part of state mandated 3rd party testing. But only if you're willing to do the chemical modifications required to distinguish cannabinoid acids from their decarboxylated equivalents. My issue with the chemical modification...

For those with less capital, there is always TLC. eg Alpha CAT https://www.alpha-cat.org/the-test/how-it-works/ I've personally run about a dozen plates in a lab that partnered with Cannatest. I would characterize the results as "semi-quantitative". The operator has to compare the size of...

Once you have them dialed in they are quite robust. Just make sure you don't inject trichomes. The tube is only 500microns, so 75 or 125 microns "boulders" have a tendency to make a mess in there and are a royal pain to get back out. All you have to do to avoid it is NOT shake the vial before...

http://srigc.com/ two cannabis specific rigs on their home page. The 310 looks to be most appropriate for an extractor (residual solvet, cannabinoids, terpenes). I'm running an older version of their 8610C that I purchased used several years ago from a dispensary. It does a great job on...

Ideally we need to do a bioassay or twelve to settle that one: sit down and compare high 90's distillate to high 90's crystalline THCA (making sure to account for the Molecular Weight differences). Comparing 89mg of distillate to 100mg THCA is close I think.

If you don't want to spend money on 3rd party testing, then I can think of two sure ways to ensure that the input you're buying is worth extracting. Three if you include the old fashioned Organoleptic Bioassay :) 1) Spend money on in-house testing equipment 2) performing a test extraction 3)...

As a first approximation I'd hit up the equipment manufacturer... Although I recall an aging DIY CO2 thread, I don't recall Skunkpharm to have ANY data on polishing CO2 extracts, or turning them into shatter. @Graywolf tell me I'm wrong :-) If you add "Apeks" or "Eden" to your searches...

You are absolutely correct that vaping does not require the concentrate be decarboxylated first However, OP uses the term "RSO" which generally implies a decarbed product (per Rick Simpson's recipe). Decarbing also reduces the viscosity, which is generally considered helpful when trying to...

The extraction profiles are going to be slightly different, and Two.bears has repeatably stated that Iso gives higher yield than "everclear". I personally didn't notice a yield hit when I switched to ethanol, but I don't claim to have been paying all that much attention. I was making meds...

perception of toxicity on the consumers part. if you're not selling it, then it's personal preference. You can just drink the tincture without purging if you use EtOH. Leaving some of the solvent in makes it easier to work with when making edibles. Not willing to add Iso to my gummies... My...

what he ^^^^^ said! QWISO to start, then QWET once you've figured out how to recover solvent. I've made beautiful shatter via QWET with >5lb input. At the 1-2oz scale, I usually recommend a press pot (stainless steel so you can put it in the freezer) for getting the solvent off the cannabis...

Solvent bubbles are larger & uneven in size. CO2 bubbles are uniform in size and smaller. Gray Wolf will tell you to go until they slow, rather than stop so as not to degrade your cannabinoids. I can't find the info here, and would point you at Skunkpharm.

If you're decarbing your oil on a hot plate, there is no need to decarb the starting material. If you are seeing CO2 bubbles (small, and even in size) when "purging" on the hot plate, you didn't get the decarb step in the oven complete. If you're making oil to vape, then you might want to try...