What angle should I hold a Japanese knife at on a whetstone?

Most double-bevel Japanese knives are sharpened at roughly 15 degrees per side — about the height of two stacked coins under the spine. Keeping the angle consistent through every stroke matters far more than hitting an exact number, which is why a stable hand position is the first thing to practise.

What whetstone do I need to start sharpening freehand?

A single 1000-grit stone like the Naniwa Chosera 1000 covers most maintenance sharpening. Pair it with an Atoma diamond flattening plate to keep the stone flat and true, and add a 3000-grit or higher stone once you want a finer finishing edge.

How to Sharpen a Japanese Knife on a Whetstone

Q: How do I sharpen a Japanese knife on a whetstone (freehand)?

Wet the stone (splash-and-go stones like the Chosera do not need soaking), hold the blade about 15 degrees, push and pull with light pressure to raise a burr along the whole edge, then deburr.

A freehand whetstone walkthrough: angle, pressure, raising and removing the burr, and the stones we stock to do it well.

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Questions about this

How do I sharpen a Japanese knife on a whetstone (freehand)?

Freehand whetstone sharpening is a learnable skill, not a knack. Wet your stone the way it needs (older soaking stones sit in water for a few minutes; splash-and-go stones like the Chosera just need a spray and can be damaged by long soaking), set the blade at roughly a 15 degree angle to the surface, and use light, consistent strokes across the full length of the edge until you feel a burr form on the opposite side.

Once you have raised a burr along the entire edge, flip the knife and repeat on the other side, then finish with a few very light alternating strokes to remove the burr. Counting strokes is a common beginner mistake: feel for the burr instead, because every knife and steel responds differently.

Our K&S take: start on the in-stock Naniwa Chosera 1000 (or a 400/1000/3000 ladder for chip repair through to refinement) and keep the stone flat with an Atoma diamond plate. A sharp edge on a dished stone will not hold a clean angle.

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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