Dec 29, 2017· So we thought of a way to clean a dry herb grinder so completely that it'll work just like new — without wasting any of the precious herbs caught in the teeth, threading, holes and screen. This is the eCig One zerowaste dry herb grinder cleaning method — Grinderrific for short. Grinderrific: The eCig One ZeroWaste Herb Grinder Cleaning ...