The Grosche Bremen Burr Grinder is easy and convenient to use to get the perfect grind! The ceramic conical burrs grind evenly, and will never rust. The gap adjustment allows you to choose from fine grind to coarse. The storage container can store 100g of your fresh grind and will keep it air tight sealed until you’re ready to brew. Easy to disassemble for washing. 1-year manufacturer’s warranty (details with product).