That’s why I said
if 
Not everybody is so lucky to live where it’s warm year round
If not the dry ice is your best bet
But I would not shake it that hard directly with the dry ice as it will grind & shatter the organic matter turning it to dust that will go through your screen
I try to shake it so that the leaves & bud slide against each other shearing the trichomes off the stalks
Also you need some kind of box built around the glass
You can see the trics floating off past the glass in the vid
I use a garage bag to catch mine & it works well
What dust is left in the bag is mostly organic matter because it is lighter than the trichomes
If I had to do it with a dry ice, I would get a cooler put the dry ice in the bottom
Fill my Micron bag with the weed put that in the garbage bag and chill in the cooler For 15 minutes
Open cooler insert a cardboard extender and shake
Cold air is heavier so the dry ice would never touch your weed
When I was younger, we read in a book that putting your weed on dry ice would make it stronger
Well, we wrapped it in newspaper and shook it a few times, checking to see if the dry ice was gone or not. When we opened it up the weed was dust.
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