Urnex Grindz Coffee Grinder Cleaning Tablets 15.2oz (430g) . The world’s first and only product for cleaning coffee grinders, Grindz Grinder Cleaner is a patented innovation item. The product is an all-natural, food-safe, and flavor neutral combination presented in coffee bean shaped tablets. Grindz™ quickly and effectively removes stale coffee residue and flavored coffee odors from the internal burrs and casings of coffee grinders. Requiring no grinder disassembly, Grindz users simply run the product through the machine just like coffee