Grinding coffee beans is easy and quick with just the push of a button. Includes instructions and a dedicated brush. I used to drink 5-6 cups of coffee a day, and hand-grinding every time was a hassle. I'm selling it because I've changed my lifestyle and no longer drink coffee. I'm offering it for sale to someone who loves coffee. Electric mills are recommended because they don't strain your hands. I have cleaned it as thoroughly as possible, but if you are concerned, please refrain from purchasing. Kalita CM-50 Black Electric Coffee Mill Compatible with 100V voltage Made in Japan