Food EditionCookAmericanLunchKeeping Your Knives Sharp
30 minIntermediateServes N/A
American · Lunch

Keeping Your Knives Sharp

A sharp knife is safer and more efficient than a dull one because it bites into the food rather than skidding across the surface. You maintain the edge by using a whetstone to create a consistent angle, removing just enough metal to reveal a clean, keen profile.

Total time
30 min
Hands-on
25 min
Serves
N/A
Difficulty
Intermediate
Before you start

Consistency beats pressure every time.

Your goal is to maintain a constant angle between the blade and the stone. If your hand wobbles, the edge will roll or dull instead of sharpening.

  • Double-sided whetstone (1000/6000 grit)
  • Non-slip stone base or damp kitchen towel
  • Container of water
  • Microfiber cloth
Ingredients

What goes in.

  • 1Dull kitchen knife
  • As neededWater for stone lubrication
The key technique

Maintaining the 15-20 degree tilt

Hold the blade at a shallow angle against the stone. If you aren't sure, use the thickness of two pennies stacked under the spine to find the right tilt.

Step by step

The method.

  1. Soak the stone

    Submerge the whetstone in water for 10 minutes until bubbles stop rising to the surface.

  2. Set the foundation

    Place the stone on a damp towel to keep it stationary. Start with the coarse 1000-grit side.

  3. Form the burr

    Drag the blade edge-first across the stone at a 20-degree angle, applying light pressure. Continue until you can feel a slight 'burr'—a microscopic wire of metal—forming on the opposite side of the edge.

  4. Switch sides

    Flip the knife and repeat the motion until you feel the burr on the other side.

  5. Refine the edge

    Switch to the 6000-grit side and repeat the motion with very light pressure to polish the edge and remove the burr.

  6. Test the bite

    Hold a piece of printer paper vertically and slice downward. A sharp knife will glide through without tearing.

Tips & troubleshooting

When it doesn't go to plan.

Tip

Keep the stone wet throughout the process to prevent metal filings from clogging the pores.

Tip

Listen to the sound; a consistent 'shhh' sound indicates you are maintaining the correct angle.

Tip

Never rush the polish stage; this is where the knife goes from 'functional' to 'precise'.

Questions

The ones that keep coming up.

How often should I sharpen?

When the knife struggles to slice through the skin of a ripe tomato, it is time.

What is a honing steel for?

The steel is for realigning the edge between sharpenings, not for creating a new edge.

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