This handsome spice and pepper grinder is hand-crafted by the only remaining iron foundry in Scandinavia using only the finest grade of iron. Simply put whole spices such as pepper, coriander, or cloves into the lower chamber and grind them by twisting the upper chamber. The upper chamber then functions as a serving container, with a natural walnut lid with rubber seal fit to keep the contents fresh. The cast iron material is pre-seasoned for immediate use and has the added health benefit of contributing iron to one's diet. Don't be fooled by lower quality copies--this is the real deal original design. Hand wash only and dry completely before storing.