Whole machine is detachable and washable, does not rust, clean and hygienic. Grinding disc design, more firm and durable, could adjust fine grinding and coarse grinding to meet different needs of brewed coffee. High quality ceramic grinding core, washable, metal-free odor. Avoid heat generation and affect flavor, better preserve the original taste of coffee will not lose. Food grade silicone cover, no odor, avoid the possibility of jumping beans. The bottom anti-slip cover increases the friction coefficient, stably the coffee grinder, more labor-saving. Beautifully designed glass bottle, intuitive appreciation, at a glance, let you enjoy the pleasure of grinding coffee. When not in use, the glass jar can be used as a separate sealed storage container.