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Knife Sharpeners

We test dozens of Manual and Electric Knife Sharpeners for performance, usability, and design. Here’s our test procedure and detailed reviews.

#Manual Knife Sharpener

How We Test Manual Knife Sharpeners

v1.1
To find out the best handheld pull-through sharpeners, we keep buying popular devices and putting them all through the same tests.

Maximum Sharpness

We test knife sharpeners out on various food items to find out the maximum level of sharpness you can achieve with each sharpening device.

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Edge Smoothness

After sharpening, we check the edge of the knife for deformities and rate the edge smoothness achieved by each handheld sharpener.

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Material Retention

We test our sharpeners for the amount of metal they peel off a blade as they sharpen the knife to a serviceable sharpness level.

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Time to Reach Workable Sharpness

We test the amount of time it takes to sharpen a chef’s knife to a serviceable level, which is a crucial criterion to consider when buying a handheld device.

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Our Manual Knife Sharpener Reviews

The Kitchellence 3-stage manual knife sharpener on cutting board, carrot, carrot slices, tomato, package box
Overall Score: 8.0
Test Method v1.1
Kitchellence 3-Stage Knife Sharpener In-depth Review
The Zwilling Henckels 4-Stage knife sharpener on a cutting board with chilli peppers, carrot, guava, tomato slices
Overall Score: 6.3
Test Method v1.1
Zwilling Henckels 4-Stage Knife Sharpener In-depth Review
The Priority Chef 2-stage knife sharpener on a cutting board with a kitchen knife and slices of lemon.
Overall Score: 8.4
Test Method v1.1
PriorityChef Knife Sharpener In-depth Review
The Wamery 4-stage manual knife sharpener on cutting board with knife, carrots, carrot slices, tomatoes, chili peppers, guavas
Overall Score: 7.8
Test Method v1.1
Wamery 4-Stage Manual Knife Sharpener In-depth Review
The Gorilla Grip manual knife sharpener on a cutting board, its package box, chilli peppers, carrot, tomato slices
Overall Score: 7.6
Test Method v1.1
Gorilla Grip Manual Knife Sharpener In-depth Review
The Smith’s 50264 adjustable manual sharpener on cutting board, kitchen knife, carrots and carrot slices, tomatoes, chilli peppers, guavas
Overall Score: 6.8
Test Method v1.1
Smith's Adjustable Manual Knife Sharpener In-depth Review
Person holding the Mueller 4-stage manual knife sharpener in one hand
Overall Score: 7.6
Test Method v1.1
Mueller 4-Stage Knife Sharpener In-depth Review
The Cubikook Chef Sharpener 3-stage knife sharpener on a cutting board with a knife and slices of tomatoes
Overall Score: 8.6
Test Method v1.1
Cubikook CS-T01 Manual Knife Sharpener In-depth Review
The Longzon 4-stage knife sharpener on a cutting board, kitchen knife, chilli peppers, carrot slices, tomato slices
Overall Score: 7.0
Test Method v1.1
Longzon 4-stage Manual Knife Sharpener In-depth Review
A hand holding a knife blade to sharpen on the Sunrise Pro manual sharpener, which stays on a cutting board.
Overall Score: 7.4
Test Method v1.1
SunrisePro Supreme Manual Knife Sharpener In-depth Review
The Sharpal manual knife and scissor sharpener on cutting board, knife tip, chilli peppers, carrot slices, tomato slices
Overall Score: 7.1
Test Method v1.1
Sharpal 191H Knife Sharpener In-depth Review
The KitcheniQ Edge-grip knife sharpener on a cutting board, kitchen knife, chilli peppers, carrot, tomato slices
Overall Score: 6.2
Test Method v1.1
KitchenIQ 50009 Knife Sharpener In-depth Review
The Chef’s Choice 4643 knife sharpener
Overall Score: 6.5
Test Method v1.1
Chef's Choice 4643 Manual Knife Sharpener In-depth Review
The Amesser 3-stage manual knife sharpener on a cutting board, its package box, knife, chilli peppers, carrot, guavas
Overall Score: 7.7
Test Method v1.1
Amesser A-65 Manual Knife Sharpener In-depth Review

#Electric Knife Sharpener

How We Test and Rate Electric Knife Sharpeners

v1.0
Our test procedure for electric knife sharpeners and how we rate them for performance, ease of use, and design.

Material Retention

We check the amount of material removed after an electric knife sharpener brings a dull knife to sharpness level 9.

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Speed

We test the speed of electric sharpeners by measuring the time it takes for each to sharpen a knife to beef tandon cutting level.

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Edge Quality

We check the knife edge for smoothness, evenness, and width after running it through the electric sharpener.

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Continuous Operation Time

We test electric sharpeners for continuous sharpening time by letting it run for 25 minutes straight.

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Our Electric Knife Sharpener Reviews

The Work Sharp CPE2 Electric Sharpener on countertop, its power cord, package box, tomato and carrot in background
Overall Score: 7.1
Test Method v1.0
Work Sharp Culinary E2 Electric Sharpener In-depth Review
The Work Sharp Ken Onion knife sharpener next to a kitchen knife on a cutting board
Overall Score: 8.2
Test Method v1.0
Work Sharp Ken Onion Electric Sharpener In-depth Review
The Mueller Ultra-edge Electric Knife Sharpener on cutting board, chili peppers, guava.
Overall Score: 6.6
Test Method v1.0
Mueller Ultra-edge Electric Knife Sharpener In-depth Review
The Presto 08800 EverSharp electric knife sharpener on a cutting board with a knife and chilli peppers, guavas, carrots, tomatoes for decoration
Overall Score: 7.0
Test Method v1.0
Presto Eversharp Electric Sharpener In-depth Review
The Narcissus electric knife sharpener, three spare wheels, chilli peppers, a cutting board with a knife and slices of lemon.
Overall Score: 5.7
Test Method v1.0
Narcissus Electric Sharpener In-depth Review
e EdgeKeeper electric knife sharpener on a cutting board with a chilli peppers, carrots, tomatoes for decoration and a faucet in the background
Overall Score: 5.1
Test Method v1.0
Edgekeeper Electric Knife Sharpener In-depth Review
The Chef’s Choice Trizor XV electric knife sharpener on a wooden table surface with chili peppers, an onion, and two lemon slices for decoration.
Overall Score: 8.0
Test Method v1.0
Chef’s Choice Trizor XV Electric Sharpener In-depth Review

Our Knife Sharpener Buying's Guides