How to Sharpen a Nakiri Knife: Angle, Grit & Routine

A nakiri is sharpened at roughly 15 to 16 degrees per side, on a 1000-grit whetstone to set the edge and a 6000-grit stone to refine it, then finished with a light strop to remove the burr.

That is the short version. The nakiri is a straight-edged vegetable knife, and the flat profile that makes it so good at push cuts is also what makes sharpening it simple — there is no belly to sweep through, so you are holding one angle along a straight line. Get that right and the knife will hold an edge for months. Get it wrong and you round the tip or leave a wire edge that folds the first time it meets a carrot.

How to sharpen a nakiri knife, step by step

Soak a 1000/6000 combination whetstone until the bubbles stop, then set it on a damp cloth so it cannot slide. Lay the blade on the 1000-grit side and lift the spine until the edge sits at about 15 degrees — roughly the width of two stacked coins under the spine on a blade this height.

Work in sections. The nakiri's edge is straight, so divide it into three or four overlapping zones and give each the same number of strokes rather than trying to sweep the whole length at once. Push away with light pressure, draw back with almost none. Keep the stone wet throughout.

Sharpen one side until you can feel a burr along the full length of the opposite side — run a fingertip down the blade face, never along the edge. Flip and repeat until the burr moves back. Then switch to the 6000-grit side and do the same with far lighter pressure, alternating sides every few strokes until the burr falls away. Finish on the back of a leather belt or a folded newspaper to clear the last of it.

Wash the blade, dry it immediately, and leave it out for a few minutes before it goes away. If you want the stone technique in more depth, our whetstone guide covers grits, soaking and stone care.

What angle should a nakiri be sharpened at?

Between 15 and 16 degrees per side is the working convention for Japanese double-bevel kitchen knives, and it is where a nakiri belongs. Western knives are usually ground closer to 20 degrees per side, which is why a nakiri sharpened on a pull-through tool set for Western angles comes back blunter than it went in.

A shallower angle cuts more cleanly but leaves less steel behind the edge. If you mostly cut soft vegetables, stay at 15. If your nakiri also meets squash, swede and hard root veg, sit closer to 16 or 17 and you will chip it less often. What matters more than the exact number is holding whatever angle you pick consistently from heel to tip.

Single-bevel knives are a different job entirely — a nakiri is double-bevel, so both sides get worked.

Which grit to use, and how often

A 1000/6000 combination stone covers almost every household need. The 1000 side does the cutting; the 6000 side polishes what the 1000 left behind. You only need a coarser 400-grit stone if you have chipped the edge or let the knife go blunt for a year.

For frequency, let the knife tell you. A nakiri in regular home use wants full sharpening two or three times a year. Long before that it will start to slide off a tomato skin rather than bite it — that is the moment to hone, not sharpen.

Honing between sharpenings

Honing does not remove steel; it pushes a rolled edge back into line. A few light passes down a honing rod every handful of uses will keep a nakiri feeling new for far longer between stone sessions.

Use a smooth rod rather than a heavily ridged one, match the same 15-degree angle, and use almost no pressure — the weight of the blade is close to enough. If the knife will not come back with honing, it needs the stone.

Cleaning and drying

Most nakiri damage is not dullness, it is rust and chipping, and both come from how the knife is treated after the cutting is done.

Hand wash only. A dishwasher combines heat, caustic detergent and knives knocking against crockery, which is a good way to ruin an edge and a wooden handle in one cycle. Use warm water and mild soap, wipe the blade down with a cloth rather than scrubbing with an abrasive pad, and dry it the moment it is clean — not on a rack, not later.

High carbon steels will spot if left wet. If yours does, our carbon steel knife care guide covers patina, rust and the difference between them, and how to get rust off a knife covers what to do if it has already started.

Storing a nakiri

Loose in a drawer is the worst option: the edge knocks against everything else in there and dulls between uses. A magnetic strip or a block keeps the blade off other metal and keeps the knife within reach. A wooden display block works just as well if you would rather keep the knives on the counter.

If a drawer is the only option, sheath the blade or use an in-drawer tray that holds each knife separately.

Questions about sharpening a nakiri

Can I sharpen a nakiri with a pull-through sharpener?
You can, but most pull-through sharpeners are set to Western angles near 20 degrees per side, so they grind away the finer Japanese edge. A whetstone is the right tool for this shape.

How do I know when the burr has formed?
Run a fingertip gently down the blade face, moving across the edge rather than along it. A burr feels like a slight lip catching your skin. When you can feel it along the whole length of the opposite side, that side is done.

Should I sharpen both sides of a nakiri equally?
Yes. A nakiri is a double-bevel knife, so both sides get the same treatment and the same number of strokes.

Why does my nakiri chip at the tip?
Usually because it has been used for something with bone or frozen through, or because it was sharpened at too shallow an angle for the work it does. A nakiri is a vegetable knife — keep it off bone and it will keep its edge.

Shop the range

Our nakiris are hand-forged, full flat-ground and finished by hand: the Torii 7" Nakiri in 7Cr17MoV high carbon steel, the Bara Forge 7" Nakiri in layered forged steel with a stabilized burl handle, the Feather Forge 7" Nakiri in 73-layer feather Damascus over an AUS-10 core, and the Damascus Dynasty 7" Nakiri and Silver Dynasty 7" Nakiri in 67-layer Damascus.

New to the shape? What a nakiri knife is used for covers the cuts it was built for, and our Japanese chef knife guide shows where it sits among the other Japanese shapes.

Browse the full range: Japanese Chef Knives. Every blade is hand sharpened and oiled before it ships, and every one comes with a 99-day home trial and a free lifetime guarantee — the sharpest blades you will ever use or your money back.