GRINDZ safely and effectively cleans grinder burrs and casings. Use this product weekly for best results.One of the most essential parts of the brewing process is the grind. As you grind your coffee oils build up on the burrs of your grinder and over time oxidize. Those oxidized oils then transfer onto coffee that passes through the burrs and ends up in your cup. GRINDZ ensures that your burrs are and casings are clean, leaving no taste or odor behind. Regular use will keep your coffee and espresso tasting as fresh as possible.