How to Use a Honing Rod Correctly (Without Dulling the Knife)

What honing does and does not do

In use, the very thin apex of a knife edge rolls or bends slightly to one side. It still has steel there, it just points the wrong way, so the knife feels dull. A honing rod straightens that rolled edge. A smooth steel rod does this almost without removing metal; a fine ceramic rod realigns and also removes a tiny amount; a diamond rod is coarse enough to actually sharpen.

Honing cannot fix an edge that has been worn round or chipped. If ten careful strokes per side do not bring back a clean cut on paper, the knife needs a stone or sharpener, and the rod goes back to maintenance between sharpenings.

Compare steel, ceramic and diamond rods →

Step 1: Set up the rod vertically

The safest and most consistent method for beginners is the vertical one. Stand the rod straight up with its tip on a folded towel or cutting board so it cannot slip, and hold the handle firmly in your non-dominant hand. Your hand stays above the guard, and the knife moves downward and away from it.

The flashy method chefs use, swinging the knife toward the hand holding the rod in the air, is faster but makes it hard to hold the angle, and a slip goes toward your fingers. There is no edge benefit to doing it that way.

Step 2: Find the angle

Place the heel of the knife against the top of the rod with the blade perpendicular to the rod, which is 90 degrees. Halve that to 45, then halve again to about 22 degrees. For most Western knives, drop slightly to about 20; for Japanese knives, a little lower again, about 15. Hold that angle with a locked wrist.

If you are not sure, use slightly higher rather than lower. Honing a hair above the edge angle still straightens it, and makes the stroke touch the apex. Honing well below the edge angle only rubs the side of the bevel and does nothing.

Angles for Wusthof, Shun and more →

Step 3: Stroke, alternate and count

Starting with the heel near the top of the rod, draw the knife down the rod and toward you in one smooth arc so the whole edge from heel to tip passes over it, finishing with the tip near the bottom. Use about the weight of the knife, 1 to 2 pounds of pressure at most. Pressing hard bends the edge further or chips it on ceramic.

Switch to the other side of the rod and repeat the same stroke on the other side of the blade. Alternate for 5 to 8 strokes per side, then finish with 2 or 3 even lighter strokes per side. Wipe the blade, then test on paper or a tomato.

A quick way to check your work: hold the knife edge up under a bright light and look straight down at it. A straight, well-honed edge is almost invisible. Small bright glints mean spots that are still rolled or worn flat; give those sections another light stroke or two on each side and look again.

How often to hone, and when to stop

For a home cook, honing before each cooking session or every few uses is plenty. A professional who cuts for hours may hone several times a shift. Ceramic and diamond rods remove steel, so use them less often than a smooth steel, perhaps once a week, and save the diamond rod for when the knife has gone noticeably dull.

Stop honing and sharpen properly when the knife needs more and more strokes to come back, when the edge shines as a thin bright line under a light (that is a flat, rounded apex reflecting), or when paper tears instead of slicing even after honing.

Whetstones for when honing is not enough →

Mistakes that make honing useless

Too much pressure is the most common one: it creates a burr instead of straightening the edge. The second is an inconsistent angle, often too steep near the tip as the wrist rolls. Slow, light, identical strokes beat fast ones every time. The third is using a grooved steel rod on a hard Japanese knife; the ridges can chip thin, hard edges, and a smooth or fine ceramic rod is safer.

Do not hone a serrated knife on a straight rod. The rod rides only on the points and does nothing for the scallops. Serrated blades need a tapered rod worked into each scallop.

Sharpeners for serrated knives →

Frequently asked questions

How many strokes should I use on a honing rod? Five to eight light strokes per side, alternating, followed by two or three lighter finishing strokes per side. More than that usually means the knife needs sharpening rather than honing.

Should I hone before or after using a knife? Either. Many cooks hone before they start so they begin with a straight edge. Honing after use and before storing works just as well. The important thing is regularity.

Does a honing rod sharpen a knife? A smooth steel rod does not sharpen; it realigns. A fine ceramic rod realigns and sharpens very slightly. A diamond-coated rod is a sharpening tool and removes steel like a coarse stone.

Can a honing rod damage a knife? Yes, if you press hard or use a grooved steel on a very hard, thin blade. Light pressure on a smooth or fine ceramic rod is safe for nearly every kitchen knife.