The Knife Edge

How to complete The Knife Edge

A sharp knife is safer and far more pleasant than a dull one, and sharpening it yourself means never paying for it again. The skill is mostly about holding a consistent angle and knowing when the edge is actually keen.

1. Soak a whetstone 10-15 minutes (for water stones) until bubbles stop rising.
2. Set the blade at a steady 15-20 degree angle and push it edge-first across the stone, covering the whole length in even strokes.
3. Work one side until you feel a tiny burr along the opposite edge, then flip and repeat to raise the burr on the other side.
4. Move to the fine grit and do lighter passes to polish the edge and remove the burr.
5. Finish on a honing rod or strop to align the edge, then rinse and dry the blade.

Tips

• A honing rod realigns an edge between sharpenings but does not sharpen; the stone removes metal.
• Test sharpness on paper or a tomato, not your thumb across the edge.
• Consistency of angle matters more than pressure; let the stone do the cutting.

What counts as done

Your knife glides through a ripe tomato or slices printer paper cleanly after you've worked it on the stone.