Coffee Grinder Cleaner special also for Superautomatics coffee machines with built-in grinder . In tabs since 2002 . Now in 100% pure crystals. Not need to change the burrs setting. Restores burrs without removing. Innovating patented technology . With natural food grade active substances .Improves the cream, aroma and coffee taste .Removes oily deposits and mold. Absorbs oil and destroys rancid . Does not release dust . Genuine non harmful - non dangerous . Without gluten or allergenic. Box contains 10 bags 15 g. each.