2. Spare change.
This one is a timeless classic, I remember learning about this trick all the way back in high school.
A good way to facilitate the production of kief in your grinder is to place a coin in the middle compartment – on top of the mesh that filters out the kief.
What this does is help to prevent the kief from getting clogged up in the mesh filter, acting as a makeshift sifter (heh… makeshift sifter… say that five times fast).
Different stoners prefer different coins. Personally, I like using a dime just because it’s small, and dimes have always gotten the job done in my experience. Others purport that a quarter is better as it’s heavier and therefore more effective.
Either way, you should definitely avoid using a penny. Why? If you’ve ever worked behind a cash register, you know what your hands smell like after handling a bunch of pennies.
You don’t want that brassy-ass shit ending up in your weed.