Hard-wearing Burr Coffee Grinder: Durable 40 millimeter Stainless steel conical burrs designed to minimize grinding heat and protect the essential oils in the coffee bean, creating uniform grounds for optimal flavor extraction. Customizable Grinding: 31 precise grind settings from the finest Espresso to the coarsest French Press Grind. Precision Electronic Timer: Precision Electronic Timer allows you to adjust grind time up to 40 seconds in 0.1-second increments and consistent dose every time. Easy to Clean: The anti-static technology makes the ground coffee chamber mess-free, improving your user experience. The coffee grounds residual cleaner is good for cleaning the residual coffee grounds. Please press the coffee grounds residual cleaner after each use. And the built-in brush, removable upper burr, hopper, and chamber for easy cleaning of the item. Locking System Bean Hopper: 9.7 ounce coffee bean hopper capacity with locking system for easy removal, storage, and transfer of the bean hopper. After-sales Service: We have a professional after-sales service team. Just try it risk-free! Our total satisfaction promise covers all our products.