To sharpen a kitchen knife at home, hold it at its factory angle (about 15 degrees per side for most modern and Japanese knives, about 20 for older German ones) and grind one side on a coarse surface until you can feel a burr along the entire opposite edge. Flip and repeat, then refine on a finer surface with lighter strokes and strop off the burr. A whetstone, a pull-through and an electric sharpener all follow that sequence; they differ in how much of the angle you control.
Before you sharpen: three quick tests
- Slice a sheet of printer paper from heel to tip, held by one corner. America's Test Kitchen's rule: if it doesn't cut cleanly, hone it; if it still fails, sharpen it.
- Rest the edge on a ripe tomato. A sharp knife bites into the skin under its own weight. A dull one slides.
- Look straight down at the edge under a bright light. Any thin line of light is a flat, worn spot that only sharpening will fix.
Most "dull" kitchen knives fail the first test and pass after a minute with a honing rod. Try that first. Bread knives need a different method, covered in how to sharpen a bread knife.
Pick the method for your knife
| Your knife and its condition | Best method | Why |
|---|---|---|
| Any knife, slightly dull | Honing rod or strop | A rod hones a tiny micro-bevel (see ceramic vs steel rods) and a strop polishes; both remove very little steel |
| Western chef's knife, properly dull | Whetstone, diamond pull-through or electric | All three work; stone gives the best edge |
| Japanese double-bevel (thin, hard) | Whetstone, or a 15° diamond slot used lightly | Carbide slots can chip hard, thin edges |
| Japanese single-bevel | Whetstone only | One side is flat and must stay flat |
| Chipped or very rounded edge | Coarse stone (400) or electric coarse stage | Needs real metal removal first |
| Forged knife with a thick heel collar | Whetstone or manual pull-through | America's Test Kitchen notes electric slots can't reach the heel on those |
| Serrated bread knife | Tapered rod, one scallop at a time | See how to sharpen a serrated knife |
Find the right angle
| Brand | Per side | Details |
|---|---|---|
| Wüsthof (current) | 14° | Wüsthof sharpening angle |
| Zwilling / Henckels | 15° | Zwilling angle |
| Victorinox | 15–20° | Victorinox angle |
| Shun | 16° | Shun angle |
| Global | 10–15° | Global angle |
| Miyabi | 9.5–12° | Miyabi angle |
To hold it freehand, start with the blade straight up (90 degrees), tilt it halfway (45), then halfway again (about 22) and lower slightly. On a chef's knife about 50 mm tall at the heel, 15 degrees lifts the spine about 13 mm off the stone and 20 degrees about 17 mm. The angle calculator works it out for your knife, and the full knife sharpening angle chart covers more brands.
Method 1: whetstone (best edge)
A 1000-grit stone does most of the work on a kitchen knife; add a 400 if your knives are badly worn, and a 3000 to 6000 for a finer finish. The Sharp Pebble 1000/6000 includes a bamboo base and an angle guide; the Sharp Pebble 400/1000 adds a flattening stone and a coarser side for repairs.
- Soak or splash the stone as its maker says. Soaking stones are ready when air bubbles stop rising. Set it on its base or a damp towel so it can't move.
- Color the edge bevel with a marker so you can see where you're grinding.
- Hold the handle in your strong hand and rest two or three fingertips of the other hand on the flat of the blade near the edge. Set the angle.
- Push the knife edge-first across the stone while sliding it so the contact moves from heel to tip, lifting the handle slightly at the curve so the tip stays on. Ease pressure on the return stroke.
- Repeat until you can feel a burr (a rough lip) along the whole other side. Check by sliding a fingertip off the edge from the spine side. This is the step people skip, and it's why their knives don't get sharp.
- Flip and do the same on the other side until the burr moves back.
- Switch to the fine side. Same angle, lighter strokes, alternate sides every few passes.
- Strop or hone a few strokes per side to remove the last of the burr (see how to find and remove a burr), then wipe the blade.
The 1000 side is the one that removes steel and sets the edge; the 6000 side refines it. You'll find that reversed in at least one popular brand guide, so it's worth saying plainly. Our full how to use a whetstone guide covers grip and pressure in more detail.
Method 2: manual pull-through (fastest)
- Set the sharpener on a flat counter and hold it by the handle.
- Skip the coarse slot unless the knife is truly dull.
- Put the heel in the slot and pull straight back toward you with light pressure, lifting slightly at the curve. Don't rock or saw.
- Do several pulls in the fine slot. Test on paper.
Pick a sharpener with diamond or ceramic and a slot angle that matches your knives. The KitchenIQ Edge Grip pairs a carbide coarse slot with a ceramic fine slot for the drawer, and our best manual knife sharpener guide sorts the rest by angle.
Method 3: electric sharpener (easiest for very dull knives)
Electric sharpeners use spring guides to hold the angle and motorized abrasive wheels to do the grinding. The Chef'sChoice 15XV is diamond in its first two stages and, per its listing, converts 20-degree edges to 15. Pull the knife through each slot at a slow, even speed, alternating left and right slots, with no downward pressure. Use the coarse stage only when the knife is really dull; for most resharpening, start at the middle or final stage. America's Test Kitchen notes that electric models can't reach the heel of knives with a full forged collar, and that they only touch the tips of serrations. If yours is a Chef'sChoice, follow our model-by-model Chef'sChoice guide for the pull counts.
A middle path: guided systems
If you want stone-quality edges without learning freehand, a clamp system holds the angle for you. The Work Sharp Precision Adjust dials from 15 to 30 degrees and steps from coarse to fine in one setup. It's slower than a pull-through and much more controlled.
Two routines: weekly and twice a year
| When | What | Time |
|---|---|---|
| Before cooking, or weekly | 5 to 8 strokes a side on a honing rod, or 10 on a strop | 1 minute |
| When honing stops working (often every few months) | Fine stone or fine slot only, then strop | 5 minutes per knife |
| Once or twice a year, or after a chip | Full sequence: coarse to fine, burr each side, strop | 10 to 20 minutes per knife |
Our how often to sharpen knives page breaks this down by how much you cook.
Five mistakes that keep knives dull
- Stopping before the burr runs the full length of the edge. The un-ground section stays dull.
- Too much pressure, especially on a pull-through, which makes the blade wobble and rounds the edge.
- Changing angle mid-stroke. Lock your wrist and move from the shoulder.
- Sharpening on a dry or dished stone. Keep a water stone wet and flatten it every few sessions; see how to flatten a whetstone.
- Leaving the burr on. It folds over on the first cut and the knife feels dull by dinner. Strop it off; our stropping guide shows how.
Keep the edge longer
Cut on wood or plastic, not glass, stone or a plate. Wash by hand and dry right away; dishwashers knock edges against other utensils. Store knives in a block, on a magnetic strip or in edge guards rather than loose in a drawer. A thin strop like the SHARPAL 205H, which comes with green compound, makes the weekly touch-up quick enough to actually do. Still deciding what to buy? The best knife sharpener for kitchen knives compares all three types side by side.
Methods compared against America's Test Kitchen, Montana Knife Company, Stahl and Mediocre Chef guides, read October 13, 2026. Brand angles from our brand pages, which cite each maker. Spine heights calculated. Product details from Amazon listings checked the same day. How we research · Affiliate disclosure