Knife sharpeners review and compare

We test knife sharpeners for safety and performance.
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  • Updated:6 May 2009


Knife sharpener

Test results for 16 knife sharpeners priced from $4 to $199

Keeping your knives sharp not only makes your job as master chef in the kitchen easier and quicker, but much safer too. If your knife is blunt, there’s a danger it could slip from the food you’re cutting and slice through your fingers.

Refining the already-sharp edge of your knife on a honing steel is a handy interim measure but eventually, depending on how often you use your knives, honing will no longer be enough to keep the blade sharp as the edge degrades with use. One of the safest ways to test whether your knife is sharp enough is to cut through a soft tomato. If it’s sharp, it will slice through easily. If it requires pressure to cut, then it’s time to run your knife through a sharpener. Eventually your knives may need professional sharpening though, which can be done at most good cookware shops.

To determine which knife sharpeners currently on the market are the best at sharpening and the safest to operate, we put three electric and 13 manual models to the test and found some to be safer than others.

Please note: this information was current as of May 2009 but is still a useful guide to today's market.

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These independent ratings are only available through membership with CHOICE Online because no one test products like we do. Arm yourself with our unique and exclusive information and make your next purchase with confidence.

Brands tested

  • Accusharp Knife and Tool Sharpener
  • Anolon Universal Sharpener
  • Breville BKS600 Ikon
  • Chef's Choice 2 stage Sharpener 450
  • Cuisinart KS-80A
  • Furi Ozitech Diamond Fingers Knife Sharpening System FUR626
  • Kuhn Rikon Kyocera Knife Sharpener KR-2941
  • Minosharp Water Sharpener 220/GB
  • Russell Hobbs RHKS1000
  • Saphire Knife and Tool Sharpener
  • Scanpan Sharpener Classic 3 Step Knife Sharpener
  • Smart Chef Knife Sharpener with Grind Stone
  • Victorinox Knife Sharpener 7.8715
  • Wiltshire WILT595064 Knife sharpener
  • Wusthof Knife Sharpener 4344
  • Zwilling J.A. Henckels Twinsharp 32590-200 Blue


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