can ceramic blades be sharpened

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  • Can you sharpen ceramic knives?

  • The problem with sharpening ceramic knives is that ceramic blades are very brittle. Ceramic has a hardness of 9.5 (as opposed to steel with a hardness of 6.5). If you apply too much pressure to the side of the blade, it could easily snap. Also, the only material hard enough to sharpen ceramic is diamond, with a hardness of 10.

  • What is a ceramic sharpening rod?

  • They are honing rods made of ceramic, which again is an abrasive used to sharpen other softer metals, but cannot sharpen your ceramic knives. Don鈥檛 get confused when you see that term.

  • How long do ceramic knives hold their sharpness?

  • While they hold their sharpness for a good 6 months, or even longer, depending on usage, they will eventually become dull and you鈥檒l be left trying to figure out how to sharpen ceramic knives. Don鈥檛 worry, you鈥檙e not the only one who has dull ceramic knives hiding in their knife block.

  • Can you sharpen ceramic with a waterstone?

  • Many people use traditional waterstones ( like these ) to sharpen ceramic, and whilst yes, traditional abrasives like sandpaper and waterstones will work, I couldn鈥檛 recommend them over diamond stones.

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