Great Ceramic Tarrington House Kitchen Knife. Light and Balanced With Ergonomic Handle to Make Slicing & Dicing Easier With Less Hand & Wrist Fatigue. Unlike metal knives, the Black Ceramic Knives do not corrode, rust or leach metal ions from long-term exposure to moisture, oils and acids in common foods. Ceramic is non-porous, so food and food odors do not stick to the blade. It"s as easy to clean as simply wiping with a wet rag. Since it is non-porous, it will also not transfer food odors to other foods. No more having your other vegetables/fruits taste like garlic or onion!