Try a rotary-blade coffee grinder - works GREAT! Every so often I run into some herb that is extra sticky (Good thing!) but more difficult to grind. Then I saw this suggested in a Leafly article and decided to try it. I had an ounce of very resinous GG#4 and the coffee grinder made quick work of it - 1/4oz. made perfect for consumption in seconds. So I bought a new burr mill grinder for the kitchen and the old rotary blade unit now belongs with my Cannabis equipment collection. Sometimes the simplest, best solutions are right under your nose.
