Made from Zirconium Oxide which is second in hardness only to diamonds (Diamond 10 mohs, Zirconium Oxide 8.2 mohs, very good quality steel is 5 mohs) it resists wear and holds its edge brilliantly and should not need sharpening for up to 10 years! (with proper care) If sharpening is needed, TODCO will re-sharpen your knives at no charge on a custom diamond wheel. # These knives are for slicing only - not for chopping # Always use a wood cutting board when slicing foods # An ordinary mild detergent may be used when cleaning knives # To remove any discoloration on the ceramic blade, mild cleanser may be used # Diamond Sharpeners are recommended for use in re-sharpening when required # Do not chop or cut frozen food such as frozen meat, fish, etc. # Refrain from cutting meat or poultry, etc. that have bones # Because ceramic does not bend, these knives should never be used to forcefully cut food # NOT Dishwasher safe
