Practicing some runs

Hey guys, I've been lurking on this forum for awhile and have been doing runs for a month or so now. I have a degassing chamber and a 3cfm 1stage vacuum pump that I've been working with to vac purge. Still working on my technique vac purging but tried my hand at winterizing with ever clear this past weekend and wanted some advice/critique. Very fascinated with running bho and would love to do it more professionally for patients.

Guess I'll give a run down on my technique.

After breaking down my nugs by hand (with gloves), and firmly packing my tube, I blast with ice cold Vector 14 with a 1can to 1oz ratio into a Pyrex dish that's atop a double boiler. Seeing how I only use a tube capable of holding 7-14g I unpacked and repacked as I went. I also crushed up the 1st run product and ran that again with minimal butane. I keep track my temps with an IR temp gun, staying as close to 100-115f as possible. After allowing the extract to heat purge on the Pyrex until most the reaction stops, I scrape onto an oil slick mat and place in my vac chamber. I purge at 100-115f at -29inhg until reactions stop, degas and rep urge a little longer to make sure all butane is purged.

As I stated, I tried my hand at winterizing recently with a little alteration to my normal technique. I blasted my product into a Pyrex measuring cup in a bath of water at 120f, once the liquid begins to thicken I added my 190proof everclear using an eyeballed 10:1 ratio and left on heat for 15min, swirling the cup occasionally. I then placed the Pyrex cup, after allowing to cool slightly, into a dry ice/ISO mix and allowed to chill for 4 hrs until temps were as close to 0 as I could maintain. Filtered through coffee filters into a mason jar that was seated in the dry ice slurry. Once filtered I poured my mix onto an oil slick mat over a double boiler, at 90-100f, with a fan blowing on it for about 30min. Once the product started thinning out, I placed back in my vac chamber at 100f -29inhg until all reactions had stopped and I was left with an amber shatter. I rolled that up and heat gunned it into the vial you see below. The strained filters were washed in everclear and are awaiting to be purged for any leftover I can accumulate.

Ran a full Oz, split between vac purge only, and wintering and ended up with only 2.5g total. Not content with end result amount but it's a learning process.

I'm open to all advice or tips to tweak my technique. I'd love to perfect it, thanks!

Looking pretty good. That is kind of a low return, but when winterizing it will always be less. Good though as you only remove stuff that doesn't help anyhow. One thing I would do differently is chill that for 24-48 hrs. More crap will fall out of the solution. Also no need to purge off all the butane before adding everclear. I add everclear right after I blast. All the butane will still evaporate off. You know its done when there are no more bubbles when stirred. If you use a freezer don't put the solution in the freezer until all butane is evaporated. Lastly you can evap everclear at room temp with a fan blowing over it. Helps keep the taste better. Just a few things I do differently, but your methods are pretty sound.

Yes, the yield was a bit lower then I had hoped. Honestly not sure where I lost it at, as I've achieved the same yield running half the original product. I do have some everclear/bho mix in the freezer but I know most of that yield will be the waxes I stripped.

I do feel I should freeze for longer times but I was under the impression with a dry ice slurry I could achieve the same results faster.. sadly after 4 hours my dry ice slurry was warming up as most the dry ice was evaporating?... Don't think I had enough to begin with.. I'm building a micro subzero cooling chamber to essentially encase my mason jar safely in the dry ice slurry to prevent an overall better freeze.

I've yet to taste the end result as I'm waiting on my new domeless nail to arrive this weekend. Thanks for the advice Francy420.

Received my new domeless nail today. Sampled the two yields. Though very potent, i think I'm going to rewash them with ever clear together and re-purge. I understand I'll strip down the flavor even more but both still have a slight harshness, and I feel theirs still too much unwanted waxs present. I'll post results when I get time.

So I had washed my filters from this run in 190 proof ever clear in the freezer for about a week and a half. Strained out the remainder fats, lipids etc and let air dry for 2 days. Left a beautiful amber color film with a milky pool in the center. So I careful scrapped the bho from around the milky area and what I picked up was an almost see through amber sap. Now, when I dab it, it tastes great but has some sizzle. I'm assuming moisture got trapped in it since the ever clear should have removed any remaining tane.


Can anyone explain the white milky dried up pool, and if my theory on the sizzle is correct?

Thanks

And as I expected... It auto buddered on me.

Milky white residue is leftover water content ... More heat and/or time is needed to rid the oil of excess moisture. The white residue will vanish.

The moisture is also the source of your sizzle.

Cold boiling your ethanol will aid in preservation of the terpene profile.

Ethanol can be tricky to purge, as the solution forms a skin on the surface, requiring a bit of heat to loosen the "matrix"...so the solvent can escape.

I can't recall how many times I've sampled winterized oils and the pleasant taste of Everclear was a very prominent note on the pallet. Yes, it actually tastes good.

I've found the same to be true with ISO extracts, made via NO heat at all...
That sweet aftertaste is traces of esters from the ISO.

I do not know if these are harmful or not , but I add heat at the end of evaporation of all my concentrates.

Each extract I make, the primary and/or secondary solvent is ALWAYS evaporated at ambient temps, with exception of butane extracts when ambient temps are below freezing.(pre-heated sand is used).

That being said, each one is also finished by further purging with heat and/or vac.

IMO Purging is a separate process than evaporation.

So even after I let it sit and evap, I should have ran it through my vac chamber? Hmm, thanks for the heads up.