Short answer: honing straightens an edge that has rolled over. Sharpening removes steel to create a new edge. You hone often and sharpen rarely, and confusing the two is why most people think their knives go dull quickly.
What actually happens to a dull knife
A knife edge is a very thin ribbon of steel. Under normal use it does not wear away first, it bends. Push it against a cutting board a few hundred times and that ribbon leans over to one side. The steel is all still there, it is just no longer pointing where you need it.
That is a rolled edge, and it feels exactly like a blunt knife. A honing rod pushes the ribbon back upright in about fifteen seconds and the knife cuts like new.
Eventually the ribbon fatigues and breaks off, or you chip it on a bone. At that point there is nothing left to straighten and you have to grind a fresh edge. That is sharpening.
How to use a honing rod
Hold the rod vertically with the tip on a cutting board. Set the blade near the top at roughly the sharpening angle, about 20 degrees, and draw it down and toward you so the whole edge travels across the rod. Alternate sides. Four or five light passes each side is plenty.
Pressure is the mistake everyone makes. The weight of the blade is enough. Leaning on it bends the edge the other way instead of straightening it.
Steel rod, ceramic rod or diamond
A grooved steel rod is the traditional choice and it only realigns. A smooth ceramic rod realigns and removes a whisper of steel, which is the most useful all-rounder for a home kitchen. A diamond rod genuinely cuts steel, so it is a sharpener wearing a rod's clothing, and it is the wrong tool for daily use on a good knife.
How often
| Kitchen knife, daily use | Hone every few uses. Sharpen every 1-2 months. |
| Pocket knife, everyday carry | Strop weekly. Sharpen every 1-2 months. |
| Hunting knife | Touch up during the job, sharpen properly after. |
| Fillet knife | Strop before every session. This one should be the sharpest thing you own. |
Where stropping fits
A leather strop does the same job as honing but gentler, and it is the better choice for a very fine edge. Spine-first, almost no pressure, ten passes. If you only ever learn one maintenance habit, make it this one.
Questions people ask
Can honing make a knife sharp again?
If the edge is rolled, yes, and dramatically. If the edge is actually worn or chipped, no amount of honing will help and you need a stone. Full method in how to sharpen a knife.
Does honing damage the blade?
Light honing does not. Heavy-handed honing on a grooved steel rod scratches the bevel and can roll the edge in the opposite direction.
Do hard steels need honing?
Less often. Our blades run 58 to 60 HRC, hard enough to resist rolling but not so hard that the edge chips on bone. Softer steel rolls more and needs the rod more.
More from the workshop
Which Oil to Use on a Knife
Mineral oil for food knives, machine oil for the rest, and never cooking oil.
Knife Steel Chart
Four properties that fight each other. Improve one and you give up another.
How to Remove Rust from a Knife
Surface rust comes off. Pitting does not. Know the difference before you start.