How to Choose a Knife Sharpener

On February 16, 2025 By newsroom Topic: Appliance Buyers Guide

A sharp knife is safer, more efficient, and easier to use in the kitchen. Here's how to choose the best knife sharpener for your needs:


1. How to Tell If Your Knives Need Sharpening

  • Tomato Test: Place the blade on a tomato’s skin with no pressure and pull back. If it slices easily, it’s sharp.
  • Paper Test: Slice through a piece of paper cleanly. A dull knife will shred or bend the paper.

2. Should You Go Pro or DIY?

  • Professional Sharpening: Costs about $5–$6 per knife but can shorten the knife's life by removing too much metal.
  • DIY Options: Use sharpeners at home every few months and a honing rod regularly to extend sharpness.

3. Types of Knife Sharpeners

A. Manual (Pull-Through) Sharpeners

  • Best For: Occasional cooks with medium-priced knives.
  • Price: $5–$50.
  • Pros:
  • Affordable, lightweight, and compact.
  • Easy to use with guides for maintaining sharpening angles.
  • Cons:
  • Not as effective for serrated knives.
  • Single-stage models are insufficient for dull blades.

B. Electric Sharpeners

  • Best For: Frequent cooks seeking quick and effective sharpening.
  • Price: $30–$600.
  • Pros:
  • Quick and powerful, even for very dull knives.
  • Guides maintain the correct angle, and belt models are customizable.
  • Cons:
  • Noisy and bulky.
  • Overuse can damage knives by removing too much metal.

C. Whetstones (Sharpening Stones)

  • Best For: Enthusiasts and professionals willing to master the technique.
  • Price: $30–$300 per stone.
  • Pros:
  • Precise control for achieving factory-sharp edges.
  • Long-lasting and versatile.
  • Cons:
  • Steep learning curve; time-consuming.
  • Requires proper selection and maintenance of stones.

D. Honing and Sharpening Rods ("Steels")

  • Best For: Regular maintenance between sharpenings.
  • Price: $40–$100.
  • Pros:
  • Easy to use for touch-ups.
  • Essential for maintaining blade alignment.
  • Cons:
  • Cannot replace sharpening; only realigns the edge.

4. Key Tips for Sharpening at Home

  • Safety First: Use a clear, level workspace and wear eye protection.
  • Follow Angles: Most European knives: 15–20°; Japanese knives: 10–15°. Check manufacturer recommendations.
  • Maintenance: Hone every few uses and sharpen 2–3 times a year.

Where to Shop

  • Manual & Electric Sharpeners: Amazon, Walmart, Bed Bath & Beyond.
  • Whetstones: Amazon, Wayfair, or specialty stores.
  • Honing Rods: Kitchenware retailers or online stores.

Choose the sharpener that matches your knives, cooking habits, and skill level to keep your kitchen running smoothly!


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