Best Electric Knife Sharpener: A Buyers Guide

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Anyone who has tried cutting a tomato with a dull knife knows the importance of keeping knives sharp. Not only does it allow your work to be smooth and precise, but it’s also crucial for your safety.

To me, discovering electric knife sharpeners was a sort of kitchen enlightenment. I suddenly could work with all kinds of food, some as hard as ribs and some as fine and delicate as tomato skin and parsley. There’s practically nothing I couldn’t do. 

In terms of safety, the sharper the knife, the less force used. This results in far fewer injury rates. It’s also important in preventing carpal tunnel syndrome and repetitive hand injury. 

In this article, I’ll shed some light on what to consider when looking for the best electric knife sharpener, as well as some of my favorite ones. 

Things to Consider Before Buying an Electric Knife Sharpener 

Knowing what to look for in an electric knife sharpener can be challenging. There are many factors that come into play. Here are some of them. 


Safety always comes first. Always look for knife sharpeners with a guard to protect your hand and fingers from being cut. 

Voltage Requirements

The question of voltage requirement is one of safety as well as convenience. Matching the outlet voltage and your electric sharpening voltage is crucial, so you don’t end up returning it, or worse it could lead to a fire.  


You’d want to buy a sharpener that works with all kinds of knives; serrated or straight. Serrated knives, in particular, have special needs when it comes to sharpening. 

There are plenty of different types of knives, all with unique features. Figure out which ones you use the most and the compatibility of each with your sharpener before purchase. 

The edge angle and the blade style are also worthy of notice. If you’re just starting out with knife sharpening, you should familiarize yourself with different edge angles and what may work best for your situation. However, keep in mind the most common edge angle is 15-20 degrees, which will work great in most situations.

Slots and Stages

The keyword here is multiple. Look for an electric knife sharpener with multiple slots and multiple stages. Multiple slots allow you to remove burrs, while multiple stages allow you to perfect sharpening and increase the lifespan of your knives. 


Electric sharpeners are usually made of steel, ceramic, stone, or diamonds. The best are those constructed with diamonds. Though expensive, it’s the most efficient in removing metal irregularities. 

Best Electric Knife Sharpeners

When it comes to electronic sharpeners, there are a lot to choose from. It’s difficult to figure out what will work best. Here are my top 7 favorite electric knife sharpeners, to help you get a better grip on what to pick. 

#1: Chef’sChoice 15 Trizor XV EdgeSelect Electric Knife Sharpener

Most Highly Rated and High Performing Choice

Chef’s Choice 15 Trizor XV electric knife sharpener is an absolute work of art. It’s a connoisseur choice. 

The most notable feature of this sharpener is its Trizor XV technology. It provides a burr-free triple-bevel fine edge with a 15 degree finish. This adds incredible strength, sharpness, and durability to the knives used. 

Made of 100% diamond flexible stropping abrasives, it ensures superior sharpening quality and outstanding precision for both straight and serrated knives. Truly game-changing!  

In addition to its wide-ranging versatility, it’s user-friendly and easy to use with practically all kinds of knives. This makes it an ideal option for beginners as well as experience knife-sharpening veterans. 

Things We Liked

  • Versatile, works on western and Asian style knives
  • Works on serrated knives
  • 100% diamond flexible stropping abrasives for an extremely sharp edge
  • Compact design that’s easy to store
  • User-friendly
  • Three-year warranty 

Things We Didn’t Like

  • Expensive 
  • Grinds a lot of knife’s substance
  • Can scrape knives sometimes 
  • Not easily used with smaller knives 
  • Not suitable for knives that need to maintain a 20-degree edge
Check on Amazon

#2: Presto 08810 Professional Electric Knife Sharpener

Most Versatile Choice

Presto is one of the leading names in the industry. A jack of all trades, master of many. It has certainly attained a reputation for versatility and efficiency. 

I’d recommend Presto 08810 for any newbie in either cooking or outdoor activities, including hunting. It’s got your back whenever you need it. 

Presto 08810 is remarkable in terms of the variety of knife types that it sharpens. It works with almost all types; including but not limited to, sports knives, hunting knives, and of course cooking knives. 

Additionally, it has a blade selector that allows you to choose thin, medium, and thick. This ensures you are sharpening your knife to the best sharpening angle. The thin system works best for fillet knives, the medium works best for kitchen knives, and thick is best for hunting knives. 

The three-stage system ensures precision, durability, and high performance for all kinds of knives. The first stage is the most course sharpening and the last stage finishes and polishes the edge.

Things We Liked

  • Good value for money
  • Three-stage sharpening system
  • Works with serrated knives
  • Interchangeable blade guides for a perfect angle
  • Fast and efficient
  • 1-year warranty

Things We Didn’t Like

  • Large and heavy 
  • It doesn’t work with ceramic knives
  • There are some concerns about its effectiveness with Japanese knives 
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#3. Chef’sChoice 290 AngleSelect Hybrid Diamond Hone Knife Sharpener

Best Hybrid

Chef’s Choice has excelled in the industry since 1985, perfecting model after model. Its 290 AngleSelect Hybrid Knife Sharpener is no different. It’s one of the few hybrid models that caught my attention. 

I think the 290 AngleSelect Hybrid is better suited for those who don’t mind a little manual work. Some people, perhaps more on the purist side, believe manual sharpening is better. In this case, we see the best of both worlds brought together in one knife sharpener.

For starters, it has three sharpening stages. The first two stages work automatically for your convenience, while the third stage is manual. The manual stage provides more of the polish while the first two do more of the intense sharpening. 

The three stages are made of 100% diamond abrasives, which perfectly sharpen kitchen and outdoor knives with minimal scraping. The end result is sharp, durable, and burr-free. 

It’s also adaptable, working equally well with Japanese and western knives. This is owing to its ability to switch between 15-degree and 20-degree angles. 

While the AngleSelect Hybrid is easy to use, it’s not particularly easy on the eyes. It’s large and quite bulky. 

Things We Liked

  • Three sharpening stages and a final polishing stage
  • Made of 100% diamond abrasives
  • Burr-free sharpening
  • Versatile and adaptable 
  • 1-year warranty

Things We Didn’t Like

  • Large and Bulky
  • Requires more effort than non-hybrid models
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#4: Shenzhen Knives Electric Diamond Knife Sharpener

Best Economical Choice

Shenzhen Knives offer quality on par with high-end brands, for a fraction of the price. It’s efficient and easy to use. Practically a steal! 

Shenzhen electric knife sharpener is one of the best out there for professionals on a budget, beginners, and those who use ceramic knives. 

First things first, it’s designed to be compact, minimalistic, and lightweight. Weighing only 1.9 pounds, it’s easily carried and stored. This is particularly an asset if you have a small kitchen. 

It stands out with its ability to sharpen ceramic knives, a feature missing in most of the other electric sharpeners. It’s powerful enough to grind chips of up to 1 milliliter off of the blade. 

Moreover, it switches between angles from a coarse 600 grit 18 degrees to a fine 800 grit 20 degrees. This handles most stainless steel and ceramic knives with a V-edge. 

Things We Liked

  • Affordable
  • Easy to use, with one-touch programming 
  • Easy to clean, with a removable diamond wheel cartridge and cover
  • Works on ceramic knives
  • MicroForge Technology
  • 3-year warranty

Things We Didn’t Like

  • Not particularly durable 
  • Not versatile, not suitable for serrated blades or non-kitchen knives
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#5: Work Sharp Knife & Tool Sharpener

Best Heavy-Duty Choice

Work Sharp knife and tool sharpener is designed for more than just kitchen and sporting knives. It can handle just about everything. But it’s especially handy if you regularly have tools to sharpen as well.

It works for the majority of shop as well as garden tools, including lawnmower blades, garden pruners, and small shovels.

Plus, it has two knife guides; at 40 and 50 degrees. The former works for kitchen knives, while the latter is better designed for outdoor knives, serrated knives, and scissors. 

Finally, the Work Sharp sharpener ensures your blade won’t get damaged or burned. This is achieved by a variety of abrasive belts; coarse (P80), medium (P220), and fine (6000). 

Things We Liked

  • Works for kitchen knives, outdoor knives, and garden tools
  • Great value for money
  • Two knife guides with adjustable angles 
  • Different abrasive belts for different kinds of blades
  • Easy to use
  • Lightweight and comfortable 
  • 1-year warranty

Things We Didn’t Like

  • May require frequent belt changes depending on what you use it for and how often
  • It doesn’t work for ceramic knives
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#6: Work Sharp Culinary E5 Kitchen Knife Sharpener

Best Professional Results

The Culinary E5 Kitchen knife sharpener has a contemporary aesthetic. It’s sleek and minimal. It won the 2018 Innovation Award for its design, and rightly so. Truly avant-garde!

Its end-result reflects its design. It’s incredibly functional and high-performing, leaving your blades as sharp as a needle. Whether you are looking for an electric knife sharpener for a small restaurant or for your home kitchen, quality is what you will get with this sharpener.

The high quality results are achieved using flexible sharpening belts, similar to that used by knife manufacturers. It can accommodate the majority of knife types, even serrated knives, and poultry shears. 

Overall, it’s user-friendly with a fast program that operates at the touch of a button. The sharpener automatically shuts off at the end of the cycle. 

Things We Liked

  • Elegant design
  • Fits easily on a kitchen counter
  • Gives your knife blade factory-sharp edges
  • Works on serrated knives, scissors, and poultry shears 
  • Automated and easy to use

Things We Didn’t Like

  • Expensive
  • Questionable company marketing ethics
  • It doesn’t work well with thick knives
Check on Amazon

#7: EdgeKeeper Electric Knife Sharpener

Easiest to use

EdgeKeeper is one of the simplest knife sharpeners out there. It looks like an every-day kitchen appliance and operates as such. No fuss, no muss. 

It’s small, compact, and comes in several colors. It’s ideal as a part of your kitchen decor, as it fits right into any corner. You can also match its color with your cabinets and other appliances. 

I would recommend EdgeKeeper for anyone with a passion for cooking. But especially for those that don’t care to spend too much time learning about knife sharpening. It’s attractive, economical, and efficient. 

Looking deeper than its look, this sharpener has non-slip feet for safe and stable sharpening. It’s also easy to clean, thanks to a built-in magnetic cleanup system collecting all metal shavings. 

Moreover, it’s based on a two-stage system, using both coarse and fine stones. The former is made of diamond abrasives to reshape the blade, while the finer stone provides the final touch. This system works perfectly well with both eastern and western-style knives. 

Things We Liked

  • Economical 
  • Multiple color options
  • Small and compact
  • Cool design 
  • Magnetic cleanup system
  • Two-stage sharpening system
  • Non-slip feet for safety and stability

Things We Didn’t Like

  • Doesn’t work with ceramic or serrated knives
  • Not particularly durable 
Check on Amazon


Knife sharpening can seem complicated. Doing it well takes skill, knowledge, and safety. That’s a tough combination. In this section, I’ll try to the best of my knowledge to answer some questions. 

How Do I Sharpen a Pocket Knife?

A pocket knife is a unique type of knife, with unique sharpening techniques. All you need is a sharpening stone, a lubricant, and some muscle. 

  1. Start with using some of your lubricant on the stone. 
  2. Place the knife blade flat on the rough grit of the stone at a 15-degree angle
  3. Sharpen both sides and repeat 
  4. Use fine grit to perfect your blade
  5. Et voila!

How Do I Sharpen a Serrated Knife?

While serrated knives are indispensable in every kitchen, it is challenging to sharpen them. They’re incompatible with many knife sharpeners. Here’s how to sharpen a serrated knife.

  1. All you need is an inexpensive, fairly available ceramic rod. 
  2. Point the knife tip away from your body
  3. Draw the rod away from the blade to protect your hand
  4. Repeat with every serration


Nowadays, electric knife sharpeners the easiest way to keep your blades sharp in the kitchen. However, with the plethora of products on the market, one is often prone to option-paralysis. It’s certainly a challenge sifting your way through all the jargon and technicalities.  

If I had to choose, I’d definitely go with Chef’sChoice 15 Trizor XV EdgeSelect Electric Knife Sharpener. It’s a combination of functionality, strength, and versatility. Truly a cut above the rest. 

Alternatively, if you’re a beginner, looking for something a little more affordable, I suggest you consider EdgeKeeper Electric Knife Sharpener. It provides superior functionality you’d find in extravagant brands without breaking the bank. 

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