This 2 in 1 multifunction grain mill is perfect for daily use and can grind a of dried materials, including beans, peppers, chili, coffee beans, nuts, grains, cereals, spices, seasonings and so on. The nucleated or crusty materials should be removed the nuclear or the hard shell and then ground. It has transparent cover, you can observe the grinding process and coarse or fine powder. It equipment of the coffee grinder is equipped with high-quality 304 stainless steel blades and a 300W powerful motor, which can ensure fast and uniform grinding, obtain fine powder within 10 seconds, and better maintain the original strong coffee aroma. It is easy to use Just press the ON/OFF button to start grinding job and release the button, the grinding will stop immediately. STEPS: 1. Pour the coffee beans into the grinder (about 50g at a time) ; 2. the cover tightly to is locked ; 3. Press the button, 10s pause ; 4. Cut off the power and pour out the powder.