Can a chipped knife edge be repaired?

Yes. Small chips grind out on a coarse stone around 400 grit by lowering the edge until the chip is gone, then re-sharpening up through the grits. Deeper chips take longer but are usually fixable on a whetstone, or Knives and Stones can restore the edge for you.

Why Did My Knife Chip or Dull, and How to Fix It

Q: Why did my Japanese knife chip?

Chips usually come from contact with bone, frozen food or hard boards, or from twisting a thin edge sideways. Japanese knives trade some toughness for sharpness, so use a wood or soft-plastic board, cut straight down rather than prying, and keep heavier tasks for a sturdier knife.

Q: Why did my Japanese knife chip or go dull, and how do I fix it?

Chips come from hard contact (bone, frozen food, ceramic, the sink); dulling from normal wear or a bad edge. Grind past the chip on a coarse stone, then resharpen.

What causes chips and rapid dulling on Japanese knives, and how to grind out a chip and restore the edge on a whetstone.

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Restoring a badly sharpened Japanese knife: the cause and the fix. You probably seen one before

Fixing a Japanese Knife Chip, Cheap as Chips

Questions about this

Why did my Japanese knife chip or go dull, and how do I fix it?

Chips almost always come from hard contact: bone, frozen food, a ceramic plate, or the edge knocking the sink or a glass board. Rapid dulling usually means either normal wear or an edge that was sharpened at too steep or inconsistent an angle and never fully refined.

To fix a chip, grind the edge down on a coarse stone until the chip is gone along the whole edge, then work back up through the grits to restore a clean, even bevel. It removes a little steel, but a chipped edge only gets worse if you ignore it.

Our K&S take: a 400 grit (for example within a Naniwa Chosera 400/1000/3000 ladder) does the heavy repair, then the 1000 and higher refine. Keep the stone flat with an Atoma plate so the repaired edge stays true.

Reviewed by James Zhang · Last updated 3 June 2026

We trust this information is correct at the time of writing, but it is not an official document and details may change without notice. If you spot an error, tell us and we'll fix it.

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