Top 5 Electric Knife Sharpeners: Quick Review Guide

Does your kitchen knife feel dull, making chopping vegetables a chore? A sharp knife makes cooking fun and safe. A dull blade often slips, leading to kitchen mishaps. Finding the perfect electric knife sharpener can feel like navigating a maze. So many brands and features promise the best edge, but which one truly delivers for your needs?

Choosing the wrong sharpener can waste money and still leave you with a subpar edge. You worry about damaging your favorite blades or buying a machine that breaks quickly. This guide cuts through the noise. We break down what really matters in an electric sharpener.

By the end of this post, you will know exactly what features to look for. You will feel confident picking a sharpener that keeps your knives razor-sharp for years. Get ready to transform your dull blades into precision tools!

Top Electric Knife Sharpener Recommendations

SaleBestseller No. 1

Presto 08800 EverSharp Electric Knife Sharpener, 2-Stage System, Silver/Black

Sharpen kitchen and sport knives to a razor-sharp edge fast and economically.
Easy 2-stage sharpening system for professional results at home on most any non-serrated blade.
Sapphirite sharpening wheels grind a precisely angled edge then fine hone and polish for a razor-sharp edge.
Sapphirite sharpening wheels are made of the same ultra-hard material used in professional sharpening shops.
Precision blade guides hold knife at the perfect angle.

Bestseller No. 2

Chef’sChoice 15XV EdgeSelect Professional Electric Knife Sharpener with 100-Percent Diamond Abrasives and Precision Angle Guides for Straight Edge and Serrated Knives, 3-Stage, Gray

CONVERT YOUR KNIVES: Ideal for converting traditional 20-degree factory edges of household knives into high performance Trizor XV 15-degree edges
DIAMONDS: Advanced stropping stage and 100 percent diamond abrasives for sharpening straight edge and serrated blades
EASY TO USE: Advanced, patented flexible spring guides for automatic adjustment and accurate control of the sharpening angle and feature simple on/off switch
THREE STAGES: 3-Stage EdgeSelect sharpening system for optimum versatility in providing the perfect edge for each cutting task. Stages 1 and 2 are plated with 100-percent diamond abrasives to sharpen and hone the edge and stage 3 uses a patented flexible abrasive system to polish and help prolong the life of serrated knives
RAZOR SHARP: The 15 Trizor XV combines the strength and durability of the Trizor edge with the flawless, ultra-sharp 15-degree XV technology. Time Required to sharpen is approximately 1 minute for first time sharpening and resharpening is approximately 10 seconds

Bestseller No. 3

Dawnstar Electric Knife Sharpener, Professional Kitchen Knife Sharpener for Home Use, 2 Stages of Coarse Sharpening & Fine Polishing, Metal Dust Collection Box for Easy Cleaning, Silver Gray

Electric Knife Sharpener for Home Use - The Dawnstar electric knife sharpener is designed for home/kitchen use, delivering professional results with ease. With effortless operation, it saves time and outperforms traditional manual sharpeners. Sharpens a variety of straight-blade knives including chef's knives, slicing knives, and santoku knives.
Save Time Than The Manual - An electric knife sharpener restores a dull knife to a razor-sharp blade in 30 seconds, you don't need to spend more than 10 minutes with a manual sharpener anymore. Every knife's first sharpening needs more time to shape the edge angle, but still faster than the manual.
Easy to Operate - The coarse stage for rapid sharpening and the fine stage for polishing burrs. Place your knife in the groove, maintaining full touch with the outer wall. Glide the blade to sharpen from base to tip, making about 2-5 passes in the coarse stage, then in the fine stage. You will get a smooth edge and excellent sharpness.
Lasting & Stable Running - This knife sharpener can keep running for a long time and sharpen all your kitchen knives in one use. The excellent motor supports its stable working status, no need to worry about it overheating. And it fits universal 100-240V voltage compatibility.
Easy to Clean Metal Dust - Each sharpening stage is equipped with a corresponding metal dust collection box at the bottom of the machine, which holds metal dust on the magnet, making cleaning much simpler.

SaleBestseller No. 4

Presto 08810 Professional Electric Knife Sharpener, Multi/None

Easy 3-stage sharpening system for professional results at home, anytime.
Sharpens kitchen and sport knives, even Santoku knives.
Blade thickness selector adjusts guides to optimum sharpening angle.
Select thick for hunting knives, medium for chef's knives and standard kitchen knives, and thin for light blades like fillet and paring knives.
Blade guides hold knife at the perfect angle for no-guess sharpening.

Bestseller No. 5

Dawnstar Knife Sharpener, Diamond Electric Knife Sharpener for Stainless Steel and Ceramic Kitchen Knives, Metal Dust Collection Box, Ergonomic Handle, Quick Sharpening & Polishing, Black

Professional Knife Sharpener Machine for Home - Dawnstar Knife Sharpener features a dual sharpening system for quick and efficient knife maintenance. The crude stage can sharpen knives quickly, and the fine stage can polish the edge more smoothly, delivering a sharp, burr-free edge. Experience restored knife sharpness in just seconds, perfectly meeting your edge maintenance needs.
Better Sharpening Experience with Diamond Abrasives - Diamond is a sharpening material with advantages in hardness and efficiency. Costing less time and power can get a smoother and sharper blade edge. Therefore, this machine can sharpen all kinds of straight, serrated, stainless steel, and ceramic knives.
Auto Guide The Angle - This electric knife sharpener is updated with a direction guide piece in sharpening slots. You no longer need to learn how to sharpen the blade at the perfect angle. Just insert the blade, and the guide piece will ensure the blade is at the perfect angle to sharpen. This update will save your time further.
Reduced Vibration - Our knife sharpener electric features a lower center of gravity and includes four anti-slip foot pads to minimize vibration during use. The ergonomic handle ensures a comfortable and secure grip for simple and safer sharpening.
Global Voltage Design - Dawnstar S865 Electric Knife Sharpener can work for 100-240V which is suitable for customers all over the world.

Bestseller No. 6

Narcissus Knife Sharpener, Professional 2 Stage Electric Knife Sharpener for Quick Sharpening & Polishing, with Scissors Sharpener and Metal Dust Collection Box, Stainless Steel, Silver

Professional Knife Sharpener for Home - QN-M866 Electric Knife Sharpener is designed for home & kitchen use, bringing you professional results at home. It is more convenient and faster than manual sharpeners. It works on several kinds of straight-blade knives like chef knives, slicing knives, and santoku knives.
2 Stage Design to Sharpen & Polish - A professional 2-stage sharpening system for crude and fine can perfectly satisfy your knife sharpening needs. The crude stage can sharpen knives quickly, and the fine stage can polish them more smoothly, delivering a sharp, burr-free edge. There's a magnetic dust collection box on the bottom to collect the knife chips.
Quick and Simple Sharpening - Simply insert your dull knife at an angle, ensuring it stays in close contact with the outer wall. Pull the knife from the outside to the inside, sharpening it 2-5 times in each slot to restore its sharpness. Enjoy a like-new sharpness in just seconds.
Stable Running - The 30-watt DC motor creates a stable working status that can run continuously for over 1 hour, allowing you to sharpen all your knives at once and the machine will not overheat. The 100-240V wide voltage design works globally.
3 in 1 Multifunctional Knife Sharpener - Besides knife sharpening, the scissors slot on the side surface can provide you with more functions. We suggest watching the product video before the first usage.

SaleBestseller No. 7

Northmas Knife Sharpener, Professional Electric Knife Sharpener for Home Use, 2 Stages for Quick Sharpening & Polishing, 100V-240V Global Voltage Design, Blue

As Sharp As New - Professional 2-stage system for sharpening and polishing can quickly refresh your knives' sharpness. The crude stage sharpens knives quickly, and the fine stage polishes the edge more smoothly, delivering a sharp, burr-free edge. Bringing you professional results conveniently at home.
Save Your Time - Obliquely place the dull knife and keep it touching the outside wall closely, and then pull it from outside to inside to sharpen, sharpen at each slot 2-5 times to restore the knife's sharpness, enjoying razor-sharpness in just 30 seconds. It can save you more time than a manual knife sharpener.
Lasting Working - The sharpener always can keep a stable working status and there will be no overheating situations to quit working, allowing you to refresh all your knives at once.
Compact Design - Its compact body is easy to store in your kitchen — it doesn’t require much space, even in a crowded kitchen. Every inch of space in the entire product is maximized. We believe it will be your ideal sharpener choice.
Global Voltage Design - Northmas QN-M868 Electric Knife Sharpener can work for 100-240V which is suitable for customers all over the world.

Bestseller No. 8

Electric Knife Sharpener for Kitchen – Professional 3-Stage 100% Diamond System with 20° Precision Angle, Fast Sharpening to Restore & Polish Chef Knives(Black)

Revives Dull Knives Instantly — Repair, Sharpen & Polish. This electric knife sharpener uses a 3-stage diamond system to restore even heavily worn blades to like-new sharpness, giving you cleaner cuts and smoother cooking during the holiday rush.
100% Diamond Abrasive Wheels for Faster, Cleaner Results. Our premium kitchen knife sharpener features 100% diamond abrasive wheels that sharpen faster, last longer, and deliver cleaner edges—a major upgrade over standard pull-through sharpeners.
Precision 20° Angle Guide — Works with Most Kitchen Knives. The preset 20° chef-grade angle delivers a consistent, professional edge for chef’s knives, santoku knives, slicing knives, paring knives, and other straight-edge kitchen blades. Perfect sharpness with zero guesswork from your knife sharpener electric.
Powerful, Stable Motor — No Overheating, No Slow-Down. Engineered to maintain steady power and smooth performance without heat buildup, this electric knife sharpener ensures fast, reliable sharpening every time.
Magnetic Metal-Shavings Collector — Clean Counter, Quick Cleanup. This kitchen knife sharpener includes a built-in magnetic collector that captures metal filings instantly. Just pull out, dump, and rinse—maintenance takes only seconds.

The Ultimate Buying Guide for Electric Knife Sharpeners

An electric knife sharpener can save you time and frustration. It makes keeping your kitchen knives sharp easy. A sharp knife is safer and cuts better. This guide will help you pick the best one for your needs.

Key Features to Look For

When shopping, look closely at what the sharpener offers. These features make a big difference in how well the sharpener works.

1. Grinding Stages (or Slots)

Multiple Stages: Good sharpeners have two or three slots. One slot usually has a coarse grit for very dull or damaged blades. Another slot has a fine grit for finishing and honing the edge. Some have a third slot for ceramic knives.
Why it Matters: More stages mean you can fix a bad edge and then polish it to razor sharpness.

2. Angle Control

Fixed Angles: Many electric sharpeners have built-in angles. These are set correctly for common kitchen knives (usually 15 or 20 degrees). This stops you from guessing the right angle.
Adjustable Angles: Higher-end models let you change the angle. This is great if you own special knives, like thin Japanese blades.

3. Versatility

What it Sharpens: Check if the sharpener handles different types of knives. Does it work on straight-edge knives? Does it sharpen serrated knives? Some models also sharpen scissors or tools.
Knife Compatibility: Most electric sharpeners work best on standard kitchen knives. Some specialized tools are needed for specialty blades.

Important Materials and Build Quality

The materials used determine how long your sharpener lasts and how well it sharpens.

Sharpening Abrasives

Diamond Abrasives: Diamond is the hardest material. Diamond wheels sharpen quickly and last the longest. They are often found in high-quality models.
Ceramic Abrasives: Ceramic is good for fine honing and finishing the edge. It removes less metal than diamond, which keeps your blades lasting longer.

Body Construction

Sturdy Base: Look for a heavy base or rubberized feet. This stops the sharpener from moving around while you use it. A wobbly sharpener creates an uneven edge.
Durable Housing: Plastic housing is common, but make sure it feels solid. Metal housing usually means a more robust, longer-lasting machine.

Factors That Improve or Reduce Quality

Quality isn’t just about price. Certain design choices boost performance.

What Improves Quality:

Precision Guides: Sharpeners that hold the knife at the exact correct angle every time produce better results.
Quiet Motors: A powerful motor that runs smoothly produces less heat and friction, which protects your knife steel.

What Reduces Quality:

Cheap Plastic Gears: If the internal parts are weak plastic, they break down quickly.
Lack of Consistency: If the sharpening wheels wobble or don’t spin evenly, you will get a rough, uneven edge on your knife.

User Experience and Use Cases

How you plan to use the sharpener matters. Think about your kitchen routine.

Ease of Use

Electric sharpeners are great because they are fast. You usually just pull the knife through the slots a few times. If you are a busy home cook, speed is important. Simple, marked slots make the process very easy. If the instructions are complicated, you might avoid using it.

Best Use Cases

Daily Kitchen Use: For standard chef knives, slicers, and utility knives, a 2-stage electric sharpener works perfectly. It brings a dull edge back to usable sharpness quickly.
Restoring Old Tools: If you have very old, deeply chipped knives, you need a model with a coarse diamond stage to repair the damage before refining the edge.

10 Frequently Asked Questions (FAQ) About Electric Knife Sharpeners

Q: Are electric knife sharpeners safe for my knives?

A: Yes, good ones are safe. They use fixed angles to protect the blade. However, using a low-quality sharpener too often removes too much metal, which shortens the life of your knife.

Q: Can I use an electric sharpener on serrated knives?

A: Only if the sharpener specifically has a slot or attachment for serrated edges. Standard slots are designed for straight blades and will ruin a serrated edge.

Q: How often should I sharpen my knives electrically?

A: This depends on use. If you cut daily, sharpen lightly every month. If the knife starts dragging or crushing food, it needs sharpening.

Q: Do I need to oil or clean the sharpener?

A: Most electric sharpeners do not require oil. You should unplug the unit and wipe away metal dust from the slots after several uses to keep the wheels clean.

Q: What is the difference between sharpening and honing?

A: Sharpening removes metal to create a new, sharp edge. Honing realigns the existing edge. Electric sharpeners usually do both: the coarse stage sharpens, and the fine stage hones.

Q: Will an electric sharpener work on ceramic knives?

A: Only if the sharpener is specifically designed for ceramic. Ceramic requires very hard abrasives, usually diamond wheels.

Q: How long does the process take?

A: For a standard kitchen knife that is slightly dull, the entire process (pulling the knife through all stages) usually takes less than one minute.

Q: Should I buy a manual or electric sharpener?

A: Electric sharpeners are much faster and easier to use, especially for beginners. Manual sharpeners (like whetstones) offer more control but take much more practice.

Q: What angle setting is best for Western kitchen knives?

A: Most Western (European style) knives work best with a 20-degree angle per side. Look for sharpeners that lock into this angle automatically.

Q: Why does my knife feel duller after using the sharpener?

A: This happens if you skip the final, fine-grit stage. The coarse stage creates a rough edge. You must use the fine stage to polish that roughness away to achieve true sharpness.