I do dry ice extractions every month, then do a solventless rosin extract on the kief. I use a 160 bag, dried, but frozen trim. Shake until it just starts to show green on the mirror, then immediately stop.
Awesone man. Very helpful, thank you. Ill go with the 160, and will freeze my trim.
When you press the kief, are you left with some unusable material? To clarify why I ask - Ive made qwiso before, and was left with a grainy/sandy/powder. I have no idea whether good or bad - but would put it in a silicone wax thing, and set it on a candle warmer until it melted, then when it cooled it was a much more user friendly consistency, more like a shatter (I could have ruined the product doing this, for all I know). Will that not work the same with what you collect with dry ice? Have to press it out?
Thanks very much for the insight, man.