Cooks Concept 4-Inch Ceramic Knife Paring Ceramic knife is super sharp,never need sharpening , it is 10 times hard than regular steel Ceramic knife has no metal taste when cut delicate vegetable such as tomato Ceramic knife is Non-reactive with food ,keep original taste and color of friut and vegetable Ceramic knife is easy to clean , no rust, hygiene,and keep you away from germ and bacteria