Dry sift rosin tech (Greenbroz Alchemist style)

Hash and Stuff Solventless
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There’s a thousand ways to skin a cat. Here’s mine!

In these photos I got 20% yield from the starting flower in under 20 mins total time flower to rosin. Speed is why I like this method, and no need to use solvents like dihydrogen monoxide. Which require removal. #truesolventless

**edit: HPLC indicates 65% THCA

  1. Tumble out that dry sift, 180u screens.!
    Add dry ice powder/chunks to flower in tumbler and let it sit for 10 mins to freeze thoroughly. Tumble for 3-5 mins (it’s quick!!). 2 lbs/run is a max on the Greenbroz alchemist 420. Must be dry flower.

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  1. Press it out. Nothing new here.

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  1. Take the spent flower and make disty because there’s still enough to be worth it! You’ll still get similar yields to extracting some average hemp biomass, and you’ve already collected a premium product!
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That rosin is awfully dark dude. Are you able to achieve a light color while still maintaining the yield?

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It’s solventless tho

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Try removing the dry ice before you sift. It is very likely breaking down plant material into fines, that are making it into your rosin, causing the darker pigment.

Who in the hell is using this?

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Use a 120 bag, 160 at most.

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This chemical kills indiscriminately.

Found a warning label, serious stuff. index

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I can run it with other micron screens on the tumbler and get it lighter, but for personal use and not having to spend much time doing making it I don’t mind this color. This was seedy outdoor that I didn’t care as much about.

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only people making bubble hash!

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I’m all for solvents! I just think as far as rosin goes this is easier than having to make bubble hash. And it’s legal to do at home, or rent the equipment out for others to process their home grown herb legally.

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I used 72u and I think a 36u bag when I pressed. 180 was the screen size on the tumbler.

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My reply was for the initial shake with di. For pressing kief, i used a 25 bag.

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The three screen sizes the Ive got for the alchemist are 180, 135, and 80 I believe. The smallest one works well but the yields arent anywhere close. Next time I’ll run the 135 and see how it looks!

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It’s not about yields, it’s about the quality/size of the trichomes

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Fair enough, I know I can improve the color here, but it still came out at 65% on the HPLC…

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This was my personal way of making hash in my apartment in Los Angeles. I am a big sift fan, gotta clean it up though with more layers/filters.

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Love the avatar @moveweight!

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I said i loved it lmao it’s too perfect
I keep not seeing you and then seeing you and i’m like fuck it! i’ll take the avatar too!

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Hey Moveweight, I wanted to reach out to you about a quick question. This is a beautiful process and end product from the photographs in the blog. I teach a course through a local community college in Saint Louis. Missouri. Our course is, Laboratory methods for Cannabis extraction and I wanted to see if you mind sharing where you were able to snag the Sift screens from? I have looked around a little but did not have any luck finding many brands, and not this one you mentioned. We do not have much funding till the end of next year, but I am still looking at items to add to ease some of our lab experiments and equipment that I can expose them to before they step into the industry. This is one of those items that I have not snagged yet and will most definitely need haha

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just go to a screen printing store the ‘brand’ don’t matter you want monofiliment polyester screens which are measured in ‘mesh’ size unless u order from europe then its T size (mesh/2.5). What you need is 80mesh=180u and ideally 110mesh=150u followed by 200-300mesh if you want to static clean before press for uber quality.

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Hi there, it’s awesome you’re teaching this in a class on extraction. Would love to contribute some helpful knowledge.

I have been exploring “dry sift rosin” for months now, something to know is you’ll never get perfectly clear/white rosin but I’m getting very close with dry sift, much closer than this post and i usually snag a 15-25% return (entirely strain dependent) only spending a mere fraction of the time and energy vs ffwh that’s fd.

I’ll share the absolute fastest and cheapest way to setup an effective sift screen for small scale.

Order a 220um “bubble bag” for a 5
gallon bucket and a 5 gallon bucket.

Bag: Amazon.ca

Bucket: Amazon.ca

Cut the mesh off of the bottom of the bubble bag, leave the stitching around the edge of the mesh intact.

Cut the bottom off of your bucket, then cut a 4" ring out of the bucket.

Tape or attach (in any way) the screen to the bottom of the ring (it’ll make for a perfect fit as the bags are made to fit the diameter of a 5 gallon bucket… satisfying).

Boom, you now have effectively one of the cheapest sift basket possible for a small scale demonstration.

If you’re using trichome rich material, the process is extremely simple, i have some tips.

You want very dry cannabis, if the trichomes aren’t falling off from simply looking at the flower… it isn’t dry enough. I use a dehydrator set on 70°c to dry the flower fast. Don’t bother with dry ice.

Once you have dry flower, take your dried flower and toss it into a osterizer(blender). Do not blend to a powder! The further you powder it, the darker it gets. Blend only enough to crumble the flower fully. Chunky enough that it’d be unfavorable for rolling. It’s moreso the whirling and swirling that will break the flower up than it is the chopping and slicing… aggressive way to knock trichomes off but super duper effective…the oster i used had blunt instead of sharp blades… this technique is amazing, less damage than tumbling or using dry ice!

(Blender Note: Before anyone chimes in with the “bUt tHe CoNtAmiNaTioN fROm pLanT mAteRiAl”. Know that i don’t care to hear it, reference my results before casting judgment).

Dump sift from oster into the 220um sift basket, shake it.

Collect it.

Fill 25um press bags.

Squish it.

Fresh Press Results:

Future #1

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Mango Kush

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Purple Bertha

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