This beautifully designed spice mill both stores and grinds spices. It is made of cast iron treated with a black lacquer and is, by nature, a non-stick surface. Its lid is made of walnut and has a silicone seal to preserve the spices. The top compartment is for storing spices and the lower portion has a pyramid shaped grinding surface. The inside is seasoned with natural Swedish organic canola oil. Designed and made in Sweden by Skeppshult, each piece is unique and crafted to last a lifetime.