Welp, came back from the store with some dry ice. Used a 90 bag followed by a 120. It's basically done in reverse with dry ice, just dumped all trim into a stainless container with chips of ice, I place the bag over the bowl, get the bag tight and then hold over a mirror and shake. I use a clean razor blade then just dump it all in a puck press.
Smaller puck is actually the 120 micron. I took my time on the 90 micron and sifted for about 15 minutes....all the trim basically looks like dried basil or something at this point, the cold temps plus grinding against the ice chips even minces the stems. The result is a powder, it's not 100% free of plant material, but damn near close enough for me. It's a light fluffy material that is tacky and hard to clean off the hands.
I also scraped the counter afterward and used that in the grinder wih some bud, it was actually quite a bit more than I would use in one session. I smoked a bowl as I was cleaning up and am now cross-eyed.
Leftovers, ice and all to the garden. Use a lot of alcohol to clean mirror.
On the scale (crappy one) these are closer to 4g, cute little bastards eh?
I prob could have went longer, and got another gram or so, but it would have been 180 or higher....meh.
Curious how I should store these? I put in a tiny pint mason with a 62% pack.