... of Ceramic Knife, stable performance, not easy to change, does not react with foods,does not affect the color and taste of ... At the same time, Ceramic knives will not have oxidation reaction or rust, it is not afraid of acid or alkali, anti-corrosion ... assured to use. The first requirement to manufacture a knife is high hardness. Steel knives’ hardness is Vickers HV700, ceramic knives HV1100. Therefore ...