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.

✓ Verified by Knives and Stones · James Zhang · Reviewed 3 Jun 2026

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