You know I have good luck without dry ice for collecting keif ... get weed real dry (I just covered up with cheese cloth and put it in the area dark area of my house till crumbly dry, but Not powdery dry... Break it up gently to about joint size material & Put it into my 160u bag or equivalent silk screen
& shake 40 sec or so collect it & recrumble gently & Shake 40 sec collect etc etc Until using a magnifying glass I start to see 20-30% green material in it...Done.
((The herb still has try combs in it so I usually save all that up and do a big bag to make hash oil out of it -60f in cooler with dry ice on top due to sublimation both Everclear & Herb in separate glass jars at minus 50-60f then mix in glass jar 20 min while still in cooler- Then strain through a 80u or so beer makers bag & then remove golden liquid & strain thru brown unbleached coffee filter...Evaporate off alcohol and nice and golden honey oil from something that probably would have been thrown away.. evaporate off alcohol and nice golden honey oil from something that probably would have been thrown away.