Why You Should Put Rice in Your Coffee Grinder

If you use a coffee or spice grinder you know that, over time, residue builds up inside and on the blades, and it'll eventually, well... get a little gross. The good news is that if you're facing a funky, gunk-filled coffee grinder, there's an easy trick to get rid of all that buildup and get your grinder clean and back in action: use rice.