seen youtube video on trimmings and sifting, video has nice clean set up but the narrator doesnt say what size micron that sifitng screen is. anyone have a good idea? here is the link How to Make Hash - Cannabis Craftsmanship (youtube.com)
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People typically use somewhere between 75 to 120 microns.
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My trim tray has a 160 micron screen underneath.
Anything below 70 uM will filter out your primary trichomes from your final product. What I usually see is 90 uM for a high grade, well rounded product. If your looking for more yield for personal use 120 is good, 160 would be the largest sift suggestable.
Pro tip: bubble hash making is revered because the process involves catching trichomes rather than sifting, so a 70uM bag will catch your best primary trichomes rather than sift them out of your final product as with dry sifting.
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I’ve always used a 120 micron sieve.
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