A sharp knife is safer than a dull one. Dull blades need more force, slip more easily and crush food instead of slicing it. The good news: keeping your kitchen knives sharp at home is easier than it looks. This guide covers honing, sharpening and simple tools for beginners.
Honing vs sharpening: what’s the difference?
- Honing straightens the thin edge of the blade, which bends out of line with normal use. It doesn’t remove much metal. Use a honing rod (often called a “sharpening steel”) every few uses.
- Sharpening grinds away a small amount of metal to create a new edge. It’s needed less often, typically when honing no longer brings the knife back.
Choosing a sharpening tool
- Whetstone (sharpening stone): gives the most control and the best edge, but takes practice. A combination stone with a medium grit (around 1000) for sharpening and a fine grit (around 3000–6000) for polishing suits most home cooks.
- Pull-through sharpener: fast and easy for beginners. The trade-off is less control, and some models remove more metal than needed.
- Electric sharpener: quick and consistent; follow the instructions carefully.
- Professional sharpening service: a good option for expensive knives or if you’d rather not do it yourself.
How to sharpen with a whetstone
- Prepare the stone. Many water stones need soaking for 10–15 minutes; others only need a splash of water. Follow the stone’s instructions.
- Place the stone on a damp towel or non-slip base so it doesn’t move.
- Find the angle. Western-style knives are often sharpened at about 20 degrees per side; many Japanese-style knives are sharpened closer to 15 degrees. Check your knife maker’s recommendation.
- Sharpen one side. With light, even pressure, slide the blade across the stone from heel to tip, as if slicing a thin layer off the stone. Repeat 10–15 times.
- Feel for a burr. A tiny rough lip forms on the opposite side when that side is sharp. Run your fingertip gently across (not along) the edge to feel it.
- Sharpen the other side the same number of strokes.
- Polish on the fine side of the stone with lighter strokes on both sides.
- Rinse and dry the knife and stone.
How to use a honing rod
Hold the rod vertically with the tip on a towel. Place the heel of the blade against the top of the rod at roughly the same angle you sharpen at, then draw the knife down and toward you so the whole edge touches the rod. Alternate sides for 5–8 strokes each.
How to tell if your knife is sharp
Try slicing a sheet of paper held in the air. A sharp knife cuts cleanly; a dull one tears or snags. A ripe tomato is another good test: the blade should break the skin without pressing.
Safety tips
- Always move slowly and keep your fingers away from the edge.
- Never test sharpness by running a finger along the blade.
- Don’t sharpen serrated bread knives on a flat stone; they need a special tapered tool or a professional service.
- Store knives in a block, on a magnetic strip or with blade guards.
Frequently asked questions
How often should I sharpen my kitchen knives?
Hone every few uses and sharpen when honing stops helping; for many home cooks that is a few times a year.
Is a pull-through sharpener bad for knives?
It’s convenient and fine for everyday knives, but it offers less control and may remove more metal than a stone.
What angle should I sharpen a kitchen knife?
Often about 20 degrees per side for Western knives and about 15 degrees for many Japanese knives. Follow your knife maker’s guidance.
The bottom line
Hone often, sharpen occasionally, and keep a steady angle. With a little practice on a whetstone, or the convenience of a pull-through sharpener, your knives will stay sharp and safer to use.
New to knives? Read How to Choose a Chef’s Knife and browse Kitchen Accessories.
