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Made from high-tech material Zirconium Oxide, ceramic blades are known for their hardness and durability. metal blades are rated 5.5 on the Mohs hardness scale compared to ceramic blades at 8.2, second only to diamonds. Harder edges maintain sharpness longer, cut better, and require replacement far less frequently. In fact, depending on use, you can go weeks or months without having to replac a ceramic blade. Slice ceramic blades last up to 10 longer vs. traditional metal blades.
On the other hand, Zirconia, the key material in advanced ceramics, is chemically inert, non-porous, non-stick and impervious to acids, salt, and rust. Chemically inert means no impact or reaction with what you're cutting, as well as a strong defense against harmful bacteria. Ceramic cutting blades are also free of lubricants and oils that traditional metal blades require to combat premature rusting. Zirconia ceramic blades NEVER RUST.
