Learning how to sharpen a kitchen knife with a whetstone saves money and makes cooking safer and easier. This beginner guide walks you through each step.
Honing vs Sharpening: What's the Difference?
Honing realigns a bent edge using a honing rod and can be done often. Sharpening removes a small amount of metal to create a new edge and is needed only a few times a year.
What You Need
- Whetstone, ideally a combination stone (around 1000 grit and 3000 to 6000 grit)
- Water (and a damp towel to keep the stone steady)
- A knife that needs sharpening
How to Sharpen a Knife on a Whetstone
- Prepare the stone. Soak it or splash it with water as directed by the manufacturer, and place it on a damp towel so it does not slide.
- Find the angle. Hold the blade at about 15 to 20 degrees to the stone.
- Start with the coarse side. Push the blade across the stone from heel to tip with light, steady pressure.
- Work one side first. Repeat until you feel a thin burr (a tiny lip of metal) on the opposite edge.
- Flip and repeat. Sharpen the other side with the same number of strokes.
- Switch to the fine grit. Use lighter strokes to polish the edge.
- Clean and test. Rinse and dry the knife. It should slice a tomato or paper cleanly.
Common Mistakes
- Changing the angle during strokes
- Pressing too hard
- Skipping the finer grit
Frequently Asked Questions
How often should I sharpen my kitchen knives?
For regular home use, once or twice a year is common. Hone more often, even every few uses.
Can I use a pull-through sharpener instead?
Yes, they are convenient, but they remove more metal and are less precise than a whetstone.
Read more kitchen tool guides.
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