The Kitchen Mill is made of the highest quality materials. The heart of the mill is a patented, stainless steel milling chamber. The mill is the most advanced way to mill grain. It has all the advantages of the old stone mills but none of their problems. There's no gumming, jamming or glazing. It will not overheat. Each mill uses a 1.8 peak horsepower, 120 volt motor. It is permanently lubricated and will provide years of trouble-free service.