Winterization while Blasting?

[BenyHempseed]

Hi All,

Been reading the forum for a while. It has been a great wealth of information through my gardening and processing journey. I've been perfecting a new extraction process over the last few months that involves prolonged reaction times with liquid butane. I posted this question on a few other forums but still haven't gotten much of a response. Without getting too specific about my setup, here's my question:

Is it possible with a 72 micron filter that I am winterizing my reaction during the blast process?

Here's the overview of the procedure: Flowers are added to the extractor and cooled to 32 degrees (at least, usually colder). Then 2 cans of butane are added to the extractor. The flowers and butane are allowed to mix and react for 45min-1hr at approx. 32 degrees or less. The extractor is gently rolled and mixed several times throughout the reaction. After the 45min-1hr has elapsed the contents of the extractor are emptied onto the pyrex dish for evaporation. As the contents are released from the extracting chamber they pass through the 72 micron screen. The dish with solvent/essential oils mix is then brought to evaporate off in a hot water bath, eventually scraped and vac purged. And the extractor is emptied of the spent flowers.

Here's where my question comes into play. When I'm removing the spent flowers from the extractor I find a layer of light yellow/white 'kief' looking material all caked to the 72 micron filter. My thought initially is that the butane had reached its capacity as a solvent and these were oils/resins washed from the material, but left behind. I began collecting and saving this mystery powder. But at this point I'm pretty convinced it holds little to no active ingredients. My thought now is that these are the same fats and waxes that are removed in the winterization process. Do you think that could be it?

Shout out to Gray Wolf and any other masters of the trade. Would love to hear your input on this.

Photos:
#1 - The caked 72 micron filter at the end of the extraction chamber

#2 - The caked 72 micron filter removed from the extractor

#3 - Mystery powder scraped off the filter

#4 - Closer shot of the powder

#5 - Final product (Pineapple Express), photo doesn't do justice, was clear/light yellow before folded to fit in the NoGoo. Hard like candy now.


Thanks!
Benny Hempseed

 

[squiggly]

A few things

1. This ain't new. Its about 3 years old or so, can find posts to that effect here at the farm (jump first shared his methodology here).

2. Yep, those are waxes.

3. If you're keeping the butane relatively near to atmospheroc pressure then you probably dont need to chill the flowers first, the solvent will do that for you.

4. If you do a short soak first you'll get a higher quality batch then you can do a longer run to get the rest of the actives out

5. Nice oil porn!