The Benefits of Using an Electric Sharpener for Serrated Knives: Faster, Easier, and More Precise

Serrated knives tend not to dull as fast as other knives, but they still slowly dull over time. Like any other knife, they need to be sharpened and maintained for optimum use.

You can sharpen serrated knives with an electric sharpener. Using an electric sharpener is less labor-intensive than using manual forms of sharpening, but over time the serrations can be worn down if you only use electric sharpeners.

Continue reading to learn more about which brands carry the most popular electric sharpeners, and which are specifically designed to sharpen serrated knives.

How to Sharpen a Serrated Knife with an Electric Sharpener

When using any sharpener, make sure you are using the tool according to the operating instructions. Here is a basic overview:

  1. You want to make sure the knife is clean to prevent build up around the sharpening disks.
  2. Use the sharpening stages in the correct order. If you are only trying to hone a blade, most manufacturers suggest using the fine stages.
  3. Manufacturers also recommend using the fine stage for a serrated edge; make sure to only sharpen the flat side of the blade, not the scalloped side.
  4. When using an electric sharpener, you want to insert the blade from the front of the device, pulling it quickly toward you, while applying slight pressure to the knife, letting the weight of the knife do most of the work.

Using An Electric Knife Sharpener On A Serrated Knife

Here are some questions you should ask before using an electric sharpener on a serrated blade.

  • What type of knife is it?
  • What condition is it in?
  • What type of electric sharpener should you use?
  • How does the sharpener work?

What Type Of Knife Are You Sharpening?

If it is a survival knife, the metal used to forge it may be harder in order to hold up the abuse inflicted on it in a wilderness setting. It also may have less serration along the blade than a kitchen knife would.

Your sharpener needs to be able to handle whatever material your knife is made of. Having the wrong tool for the job may make it difficult to achieve the desired sharpness. It is also very important to consider the material used, as different fabricators temper their steel at different temperatures. The steel rod has to be tempered at a higher level than the blade, otherwise, the steel is too soft to do the job.

What Condition Is The Knife In?

Make sure there is no structural damage to the blade. If it has been badly chipped or the blade has cracked, you could injure yourself and damage your tool by attempting to sharpen it. You should also pay attention to how many serrations you have on the blade. If the serrations are really worn, you may want to consider sending it back to the manufacturer to have it refinished or replacing the knife altogether.

What Type Of Electric Sharpener Should I Use?

There are many great products on the market to fit any sharpening need. Here are three reputable companies that sell electric knife sharpeners.

  • Work Sharp Sharpeners
  • Wusthof Electric Sharpener
  • Chef’s Choice Sharpeners

Work Sharp Sharpeners

Work Sharp has several electric sharpeners to choose from. They sell outdoor sharpeners, as well as culinary sharpeners. Their outdoor products are very versatile and can be used for sharpening your best kitchen knife, just as easily as sharpening a rusty old axe; should you need to. They also sell guide attachments specifically designed to sharpen serrated knives using their outdoor sharpeners.

Their top-rated products are:

Work Sharp Knife & Tool Sharpener
  • Sharpen every knife you own like a pro quickly, easily and with repeatable, consistent results....
  • Easily Replaceable Abrasive Grit Belts. Comes with premium abrasive belts to meet all your...
  • Precision sharpening guides provide fast, easy, repeatable and consistent results. Kitchen Knife...
  • Can also be used to sharpen a wide range of bladed shop tools and lawn and garden tools such as Lawn...
  • 1-year warranty – warranty only valid for North American 110v power source applications. Use of...

  • Knife & Tool Sharpener- The Knife and Tool Sharpener is designed for industrial use tools, as well as survival and hunting knives. This is my choice for tools and outdoor use/pocket knives with or without serrations.

Work Sharp Culinary Kitchen Knife Sharpener with Ceramic Honing Rod, Gray, 7.2 x 4.5 x 5.2 inches
  • Factory-sharp edges: The only kitchen knife sharpeners using flexible sharpening belts – the same...
  • Fast pre-programmed sharpening: the E5 sharpens your knives at the touch of a button in less than 90...
  • Sharpen any knife, any brand: designed to accommodate all the popular knife styles and brands from...
  • Built in vacuum: The only knife sharpener with a built-in vacuum to keep counters clean from...
  • Award winning design: the E5 electric kitchen knife sharpener was named as a 2018 Innovation award...

  • E5 Kitchen Knife Sharpener- The E5 Kitchen Knife Sharpener is designed for culinary knives, including serrated blades. However, this sharpener is not designed for sharpening tools. If you need something that does both, I recommend the Knife and Tool Sharpener.

Wusthof Electric Sharpener

Wusthof is known for its high-quality cutlery. They also have an electric sharpener that is just as good as their knives.

Wusthof Electric Knife Sharpener – Easy Edge Sharpener for Kitchen Knives – Black
  • Simple one-touch pre-programmed controls guide you through 3 sharpening stages without the guesswork
  • Use the Shape button if your knife is very dull or has damage to repair
  • The Sharpen button exposes a fresh cutting edge, monthly
  • Use Refine to maintain your edge weekly
  • Made in USA with a 3-year warranty; 7 x 4.5 x 5" tall

  • Easy Edge Sharpener 4341-1 – The Easy Edge Sharpener is able to sharpen both serrated blades and non-serrated blades. I’m a big fan of Wusthof knives in the kitchen and I recommend this sharpener for kitchen knives and finer outdoor knives like filet knives you may use while camping.

Chef’s Choice Sharpeners

Chef’s Choice has the largest selection of all three brands. With so many options to choose, I am only listing the two best sellers. They both are designed to be used with serrated blades.

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...
  • DIAMONDS: Advanced stropping stage and 100 percent diamond abrasives for sharpening straight edge...
  • EASY TO USE: Advanced, patented flexible spring guides for automatic adjustment and accurate control...
  • THREE STAGES: 3-Stage EdgeSelect sharpening system for optimum versatility in providing the perfect...
  • RAZOR SHARP: The 15 Trizor XV combines the strength and durability of the Trizor edge with the...

  • Trizor XV Electric Knife Edge Select Model 15 – This is a popular, everyday electric sharpener. It produces a very fine edge and is a great addition to any home kitchen.

Chef'sChoice 130 Professional Electric Knife Sharpening Station for 20-Degree Straight and Serrated Knives Diamond Abrasives and Precision Angle Guides, 3-Stage, Silver
  • Built-in precision angle guides in all three stages eliminate guesswork and produce consistently...
  • Professional sharpening, Steeling, or stropping for all types of 20-degree class knives.
  • Sharpen both straight edge and serrated knives including kitchen, household, sports and pocket...
  • Electric 3-Stage sharpener with 100-percent diamonds in stage 1, super-hardened sharpening steel in...
  • Optimum edge customized for every cutting task.

  • Professional Sharpening Station Model 130- This is Chef’s Choice most popular sharpener, and is primarily used in professional kitchens.

All three brands offer amazing products, to fit your particular need.

Even with incredible brands producing electric sharpeners for serrated blades, they will wear your knife down faster than honing by hand.

Honing Your Blade By Hand

If you are concerned about dulling the serration with an electric sharpener, you can also use a honing or sharpening rod. It is more labor-intensive, but better for the overall longevity of the knife. It won’t remove the metal anywhere you don’t want it to, preserving the teeth on the blade. You want to take off as little metal as possible to help maintain your scalloped edge. There are three types of rods.

  • Stainless steel
  • Ceramic steel
  • Diamond steel

Stainless Steel

Technically all honing and sharpening rods are made of steel, some are just coated in order to sharpen instead of merely honing. Stainless Steel honing rods don’t remove any metal, instead, they are used to keep the edge straight and burr-free, thus prolonging the time needed between sharpenings. Steel honing rods are the most common type of honing rods and can be found in nearly every home.

Ceramic Coated

Ceramic coated rods remove a small amount of metal, making the blade sharper, while also helping smooth away burs. This will wear down the metal gradually over time, but you don’t lose your scalloped edge in the process. Ceramic steels also wear away faster and can chip or break easier than other options. I’ve seen them break in half just from being dropped on cement. Fortunately, they are inexpensive to replace.

Diamond Coated

Using a diamond coated rod will also remove metal, but they are more durable than ceramic coated rods. It takes the most amount of metal off the blade, but it gives knives a super fine edge, which makes cutting a breeze. Many professionals prefer using a diamond honing rod over any other type.

Using A Honer

Using a steel honer or sharpener is different from using stones. Making the simple act of sharpening a blade, a difficult process. You really want to base your sharpening technique on the type of blade you have. Wusthof has some great tips on how to hone or sharpen your blade using a steel rod here.

I highly also recommend watching as many videos as you can, as there are different techniques you can use.

For example:

In the first video, we have a man out in the wilderness, sharpening a hunting knife. He uses a small portable sized sharpening rod. He pushes it at a down word angel lifting it before bringing it back up. He does this with all of the scallops, until he has sharpened them all and is satisfied with the results.

In the second video, we see a Chef sharpening a bread knife.  The Chef uses a standard size chromium steel honing rod and slides the flat side, or backside, of the blade along the length of the rod. Starting from the hilt of the knife, ending at the tip, using a smooth downward motion. Repeating the motion, until the edge is smooth, and has no burrs.

Both are serrated knives, but they are two very different sharpening techniques.

Size Might Matter

As you saw in the video examples above, when you are honing a serrated blade, you may need to use a smaller honing steel; if you want to sharpen inside the scollops themselves. Work Sharp also offers a pocket style sharpener here.

Sharpening Rod vs Electric Sharpener

When it comes to sharpening serrated knives, most professionals would agree, using an electric sharpener is not the best tool for the job. Yes, it will sharpen the blade, but it will eventually ruin the edge if you use it too often.

Using a honing or sharpening rod is the better choice because you have better maneuverability and greater control over the amount of material you remove. When you are using electronic sharpeners you have little to no control over how much material you remove and can easily ruin the scallops if you are not careful.


It’s completely acceptable to use an electric sharpener for serrated blades, but you should be sure to follow the instruction included with your particular sharpener and know that electric sharpening of the blade will wear the serrations down much faster than hand sharpening.

If you’re looking for a great electric sharpener that isn’t all that expensive, I’d go for the Knife and Tool Sharpener by Work Sharp. If you’re sharpening kitchen knives then I prefer the Easy Edge Sharpener by Wusthof. You don’t need to go with either of these, just choose something that fits your budget and will work well for your needs.

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