WMF spice mills Ceramill combine functionality and aesthetics. WMF mills are equipped with the original Ceramill ceramic grinding mechanism. Ceramic is harder than steel, and is resistant to wear and corrosion. The grinding thickness can be adjusted continuously from very fine to coarse. The adjustment wheel inside allows for this stepless adjustment of the grinding thickness. The aroma lid fits securely on the spice mill, protecting the grinding mechanism and preserving the spice aroma.