How to Use a Kitchen Knife Sharpener? | Basic Steps That Work

Using a kitchen knife sharpener means pulling the blade through the correct slot on a stable surface, letting the device set the angle for you.

Sharpening a knife sounds more technical than it is. Whether you have a manual pull-through or an electric model, the core routine stays the same: steady the sharpener, keep the blade level, and draw it through with light pressure. The best approach for your kitchen knife sharpener depends on the model you own, but the fundamentals below apply to nearly all of them.

How You Use a Manual Pull-Through Sharpener

Manual sharpeners are the most common type in home kitchens, and the instructions from manufacturers like Presto and Clas Ohlson follow the same basic pattern. Set the sharpener on a flat, stable surface near the edge of the counter so it doesn’t shift while you work.

Hold the handle firmly with one hand and the knife with the other. Keep the blade level and straight as you draw it through the slot, pulling from the heel (the part near the handle) toward the tip. Use moderate pressure — you don’t need to bear down hard; the abrasive does the work.

• Coarse slot first only for very dull or damaged blades.
• Fine slot second for regular touch-ups and to smooth the edge.
• Repeat 3-4 times per side, or 5-10 pulls for very dull knives.
• Wipe the blade with a damp cloth afterward to remove metal filings.

Some 3-stage systems add a medium slot between the coarse and fine stages. Start with coarse only if the knife is seriously dull; using it on a sharp knife removes more metal than needed.

Before you buy, see our tested roundup of the best budget knife sharpener options to find a model that fits how you cook.

Using an Electric Sharpener Step by Step

Electric models like the Work Sharp Kitchen Knife Sharpener take over the angle for you with automatic guides — you just match the blade to the right slot. Most powered units follow a similar sequence: start with the coarse stage if the knife is very dull, move to the medium or fine stage, then finish on a honing wheel.

Set the sharpener on a stable counter and plug it in. Turn it on, then draw the knife through the slot from heel to tip at a steady pace — roughly one inch per second. Finish with the center honing wheel to remove any burr left by the grinding stages, then wipe the blade clean.

Electric sharpeners with a blade selector, like the EverSharp, need one extra step: set the selector for thin, medium, or thick blades before you start. Matching the blade thickness prevents uneven grinding.

Angle, Pressure, and Common Mistakes

Manual rod sharpeners are the exception to the set-it-and-forget-it rule. With a rod system, you control the angle yourself — keep the blade at about 20° against the rod and pull it toward you, repeating 5-10 times per side. Wet the sharpening area first if the manual calls for it.

The pressure on any sharpener should be moderate or light. Pressing hard doesn’t sharpen faster; it digs the blade unevenly into the abrasive and wears the knife faster.

• Too much pressure — the top mistake; let the abrasive work.
• Unstable surface — a shifting sharpener ruins the angle.
• Skipping the burr removal — finish both sides or use the honing stage.
• Not cleaning filings — metal dust on the blade ends up in your food.

Sharpening vs. Honing: When to Use Each

Most home cooks over-sharpen. If your knife still cuts tomatoes cleanly but feels less sharp than it did, a few passes through the fine slot is all you need. Save the coarse stage for when the edge is actually gone.

Rolling sharpeners take a different approach: instead of pulling through a slot, you roll the sharpener along the full blade edge on a stable surface or cutting board, repeating up to six times per side, then flipping to the other side to remove the burr. These work best on straight-edge kitchen knives.