Cook’s Illustrated Rates 2015 Knife Sharpeners

Recognizing the manufacturing trend of producing smaller, 15-degree angled knives, and consequently the need for knife sharpeners that can sharpen the slimmer edge, Americas Test Kitchen has re-tested both manual and electric knife sharpeners for its July/August 2015 Product Review segment.

The company tested nine models, four electric and five manual, from both Western and Asian manufacturers and priced from $20 to $200. The evaluation process included a dulling, testing, and resharpening process that was repeated four times by multiple testers.

The company found that two factors played the biggest role in the productivity of knife sharpeners: abrasive material and the design of the sharpening chamber. The company found that diamond material, and chambers which allow a user to move the knife through with even pressure (no wiggle room) produced the best result.

The winner of the test was the Chef’sChoice Trizor XV Knife Sharpener which features diamond abrasives, a spring-loaded chamber, and can convert a 20-degree edge to a sharper 15-degrees. It has a suggested retail price of $149.99.

America’s Test Kitchen also recommended the Kitchen IQ Angle Adjust Adjustable Electric Knife Sharpener with suggested retail price of $199.99 which allows the user to set the angle from 10 to 30 degrees. Also recommended was the Chef’sChoice Diamond Sharpener for Asian Knives with a suggested retail price of $79.99. The sharpener also featured diamond abrasives and a spring-loaded chamber.