Burr grinding system: thanks to two grinding wheels it perfectly grinds coffee beans avoiding overheating and preserving coffee aroma. Upper grinding wheel is removable for ease of cleaning. Cup selector for 2 – 12 cups, shuts off the grinder automatically after grinding the right amount of beans. Finess selector to choose the desired ground coffee setting from fine to medium to coarse. Dual safe system. The product is equipped with an automatic safety device that shuts off the grinding wheels if either the ground coffee or the bean container is removed.