The 10 Best Electric Knife Sharpeners

Updated January 31, 2018 by Christopher Thomas

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We spent 46 hours on research, videography, and editing, to review the top choices for this wiki. If you want to chop, dice and slice easily and quickly, you have to keep your blades sharp. Both amateur and professional chefs will appreciate these electric knife sharpeners, which do just that. They will not only save you time, but can also protect expensive knives from damage by ensuring clean and consistent metal removal. When users buy our independently chosen editorial picks, we may earn commissions to support our work. Skip to the best electric knife sharpener on Amazon.

10. Kitchen IQ Pro Ceramic

The Kitchen IQ Pro Ceramic has a rubber hand grip and nonslip feet for controlled, easy, and accurate sharpening without any wobbling. It's suitable for use with scissors, and features a convenient clean-out slot on the bottom.
  • built-in wheel cleaning brush
  • manual honing slots
  • prone to imbalanced beveling
Brand KitchenIQ
Model 50142
Weight 5.6 pounds
Rating 3.9 / 5.0

9. Presto EverSharp

The two-stage Presto EverSharp has a compact design that fits on most kitchen counters and is weighted to sit stably. It features a low profile and multiple slots suitable for many different types of cutting implements, and it's covered by a 1-year limited warranty.
  • sapphirite grinding wheels
  • good affordable home option
  • not professional quality
Brand Presto
Model 08800
Weight 2.7 pounds
Rating 3.6 / 5.0

8. Shenzhen Knives Diamond

With a grinding stone capable of taking a full millimeter off a blade, the Shenzhen Knives Diamond will be a welcome addition to any home kitchen. It works on both steel and ceramic blades and has coarse and fine slots for ensuring the sharpest edge possible.
  • cartridge is replaceable
  • included covers keep dust out
  • wheels wear down fairly quickly
Brand Shenzhen Knives
Model SZSHARP
Weight 2 pounds
Rating 4.1 / 5.0

7. McGowan Diamondstone

For a simple, fast, and powerful action, the McGowan Diamondstone is a great choice. It may not look the flashiest, but it's a great addition to any kitchen and boasts a one-step operation that makes it exceptionally easy to use, even for a novice.
  • creates hollow-ground edges
  • doesn't get hot like some models
  • tends to spew dust and grit
Brand McGowan
Model 1923
Weight 2.2 pounds
Rating 3.8 / 5.0

6. Presto Professional

The Presto Professional has interchangeable guides that hold blades at their optimal honing angle automatically. It's a good option for the home cook or restaurant chef who uses a range of blades that includes both European and Japanese styles.
  • also works for hunting implements
  • adjustable blade thickness selector
  • guards could be a bit sturdier
Brand Presto
Model 8810.00
Weight 5.1 pounds
Rating 3.7 / 5.0

5. Chef's Choice Hybrid 290

The Chef's Choice Hybrid 290 is quite the stylish option, with a black and stainless steel finish and smooth, curved lines. It uses a three-stage grinding process with diamond abrasive wheels that provide superb control of your blade's edges.
  • engineered and assembled in the usa
  • works on serrated blades
  • creates durable arched edges
Brand Chef's Choice
Model 0290101
Weight 7.5 pounds
Rating 3.8 / 5.0

4. Work Sharp WSKTS-KO

With a variable speed motor, compact design, and an adjustable bevel guide, the Work Sharp WSKTS-KO is one of the most versatile options available. Use it to create fine edges on everything from a kitchen paring knife to a hatchet.
  • industrial-grade tool
  • perfect for use at a workbench
  • uses premium norton norax abrasives
Brand Work Sharp
Model WSKTS-KO
Weight 4.5 pounds
Rating 4.6 / 5.0

3. Wusthof PEtec 2933

From one of the most respected names in the field, the Wusthof PEtec 2933 features a three-stage system that accurately hones almost any type of blade to pristine condition. It's the ideal choice for chefs who need a reliable workhorse for frequent use.
  • makes dull blades razor-sharp
  • easy to use right out of the box
  • works in just a few seconds
Brand Wüsthof
Model 2933
Weight 4.7 pounds
Rating 4.6 / 5.0

2. Work Sharp E5

The sanding belts used by the Work Sharp E5 move slowly enough to achieve razor-sharpness while removing less metal than standard diamond-coated wheels. This way your knives will remain sharp and easily maintained for a longer lifespan.
  • includes ceramic honing rod
  • a variety of belt grits available
  • 17-degree angle good for most alloys
Brand Work Sharp Culinary
Model E5
Weight 4 pounds
Rating 4.9 / 5.0

1. Chef's Choice XV Trizor

The Chef's Choice XV Trizor is built to bring all types of blades to a fine, polished point, with an edge that slices through just about anything like it's butter. It features a three-stage process with diamond abrasives that's suitable for almost anything in your arsenal.
  • works on steel and alloy blades
  • creates a 15- or 20-degree bevel
  • top choice of pro chefs worldwide
Brand Chef's Choice
Model 0101500
Weight 4.7 pounds
Rating 5.0 / 5.0

The Knife: Every Chef's Most Important Tool

Most culinary professionals will agree: few tools get as much use in the kitchen as the iconic chef's knife. These medium-to-large-sized beauties are often flashy and usually razor-sharp. Most kitchen workers and home cooks swear by them as their most treasured piece of equipment. And when something is that important to your food and your career, keeping it in great condition is of utmost importance.

The most obvious reason for proper knife care is the ease with which a sharp knife can be used. The most exact, clean, consistent cuts are easy when your blade sinks smoothly into the food you're prepping. What a lot of people overlook is the safety factor that comes with keeping your implements in tip-top shape.

It's simple to see how a dull knife is more dangerous than one that is honed daily. It takes more power to chop with a blunted blade, and inconsistent knife edges easily slip off food and can jerk the knife across or into your hand accidentally. Furthermore, injuries from less-than-perfect knives generally take longer to heal. So, it's of prime importance to keep that blade as keen as possible.

The thing is, sharpening knives using the popular and traditional sharpening stone method can be very difficult. Many cooks spend years of careful practice perfecting this skill. However, barring a prodigy-level ability to quickly master this ancient technique, there are other options, such as professional sharpening services. But it does generally take multiple knives to get various jobs done, and the $1-$2/inch prices from these craftsmen can add up quickly, especially if you have a lot of dull knives.

So what does the home chef or restaurant sous do to make sure every metal tool is safe and effective without breaking the bank? Leave it to modern power tools to bring us a quick, easy, and foolproof way to maintain any set of knives.

What It Means To Be Sharp

That's a great question — and one that's often left unanswered. First of all, sharpening and honing are two different activities. Before a blade becomes actually dull, first it loses its true. In this stage, the very edge of the knife actually becomes malleable and curls over slightly, hurting the knife's overall performance. When this happens, as it does to all knives during regular use, the correct solution is to use a honing rod.

While sharpeners remove material from the blade and can make an unusable knife seem new again, honing rods simply uncurl the very edge of the knife and keep it from starting to become dull. That being said, many heavily-used knives will benefit from a monthly sharpening in addition to daily honing. And that's just the beginning of understanding sharpness.

There are a few qualities that affect exactly how sharp your knife blade will be. Be careful to remember that not all steel is the same. Indeed, manufacturers use very different alloys with varied qualities that directly effect how the knife is used. Many knives, especially those with German or French heritage, use steel that is somewhat heavy and soft when compared to the metal used in most Japanese-style knives.

Although this is somewhat counterintuitive, soft, heavy steel is often more resilient to nicks and dulling than harder steel. Carbon steel, known for the high level of attention and care it demands, actually holds a better edge and is more easily sharpened than its stainless counterpart. On the other hand, while harder alloys require less daily honing, some high-hardness steel can become brittle and prone to chipping. For example, it's important to use only smooth honing rods on harder Japanese-style knives to prevent micro-serrations that diminish the edge and lifespan of the blade.

What These Tools Can Do For You

As mentioned, hand-sharpening knives is by no means an easy task to get right. It requires investment in a set of stones of varying coarseness, patience, and lots of practice. In fact, a lot of people end up damaging a knife or two while learning the process, so its good not to start training on your finest European blade. With the advent of high-quality electric options, though, that learning curve is effectively eliminated.

You'll find that most of the models on the market operate using at least one pair of grinding wheels. These are often made of industrial diamond-incorporated materials that work very effectively. A few of them employ proprietary alloys that are just slightly less abrasive than the diamond wheels. Some premium options use a belt-grinder setup with belts available in various grits. A couple high-end models even feature adjustable bevel guides. This lets you customize the exact angle of your blade's edge, perfect for chefs who use a blend of Eastern and Western-style knives of varying hardness.

A lot of these units offer multiple stages of grinding options. As the fineness of the wheel used increases, so does the sharpness and consistency of the blade, even on a microscopic level. For that reason, properly sharpened and honed blades tend to remain sharp and usable for longer stretches than knives that are only kept up sporadically.

Rarely, you'll run into a sharpener with a slot for serrated blades. This is especially useful, as the hand-sharpening of these useful tools is notoriously difficult and time-consuming. After all, a sharp serrated knife can be a huge help in the kitchen, especially when slicing homemade bread or extremely ripe heirloom tomatoes.

Many electric sharpening units are designed with kitchen knives in mind. Some of them are suitable not just for culinary applications, but also for working on hunting and survival equipment or brush-management tools. Of course, you'd never want to be caught with a dull pocketknife when field-dressing a buck or building an emergency shelter. With today's wide range of available electric knife sharpeners, you never will be.


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Last updated on January 31, 2018 by Christopher Thomas

A traveling chef, musician, and student of the English language, Chris can be found promoting facts and perfect copy around the globe, from dense urban centers to remote mountaintops. In his free time he revels in dispelling pseudoscience, while at night he dreams of modern technology, world peace, and the Oxford comma.


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