Skip to main content

This is how to sharpen a serrated knife the right way

This fearsome blade needs a little extra love

Knife blades closeup
stevepb/Pixabay

In every good set of kitchen knives, there is one particular blade that most people both love and hate. We love it for its ability to flawlessly slice through foods like crusty baguettes and plump, ripened tomatoes. Its jagged edge gives us smooth cuts through otherwise tricky-to-slice ingredients, all while appearing rather fierce in the process. But this knife can be desperately infuriating in its trickiness to sharpen. This is the serrated knife – a fiercely toothy blade with a saw-like edge.

Serrated knives come in all sizes for a variety of kitchen tasks. Their toothy edge is perfect for many culinary uses, allowing for crisp, clean cuts without tearing or squashing the ingredient’s often tender interior.

Recommended Videos

But when it comes to maintaining this rather fearsome blade, things can get a bit tricky. Unlike the smooth, even surface that most blades provide, the serrated edge of these knives requires a slightly different sharpening process. While many modern electric knife sharpeners feature a serrated knife slot, these aren’t often the most precise and can actually damage your blade if you aren’t especially careful. While it does take a bit more time and some patience, the most effective way of sharpening a serrated knife is with a ceramic honing rod.

How to sharpen a serrated knife

Man slicing bread
Drazen / Adobe Stock

Before beginning the sharpening process, be sure to start with a clean, dry knife, a prepared whetstone (or sandpaper), and a towel for wiping your blade.

  1. Find the beveled side: Every serrated knife has a flat side and a beveled side. The beveled side reveals a slight angle on the side where the blade has been carved to form the serrated edge, which you will be sharpening.
  2. Sharpen: Using extreme caution, place the rod flat against the angle of the beveled edge, then run the rod through the dip toward the cutting edge. Repeat this process with every dip in the blade’s edge.
  3. Clean: Tiny pieces of metal will collect on the flat side of the knife as it is sharpened. These are best removed with a whetstone or, more easily, with fine-grit sandpaper. Wipe the blade with a dry towel and store your knife properly.

Serrated knife tips:

  • Because there aren’t any shortcuts in sharpening a serrated knife, fewer serrations are easier to maintain. When purchasing your knife, you may consider finding one with fewer serrations for both ease of sharpening and cleaning.
  • Most knives become dull not from slicing and chopping food but because of their constant contact with your cutting board. Because of the way serrated knives are used, they seldom run along the cutting board’s surface and, therefore, remain sharper for longer. Because of the more delicate design of the serrated knife, though, it can’t withstand constant sharpening. Try to sharpen only when the knife is getting noticeably duller.
Lindsay Parrill
Lindsay is a graduate of California Culinary Academy, Le Cordon Bleu, San Francisco, from where she holds a degree in…
Leftover wine is your kitchen’s secret weapon — here’s how to use it
There's always a reason for wine
man cooking with wine

I admit, it's rare that a bottle of wine goes unfinished in my house, but it's been known to happen on occasion. Especially after a small party or get-together when several bottles have been opened and there's a splash of each leftover in multiple bottles. In these cases, rather than tossing it down the sink, I transform leftover wine into something special, be it a cocktail ingredient or a delicious marinade for my favorite flank steak recipe.  Leftover wine is basically my kitchen secret weapon, as there are so many delicious ways to repurpose it. Whether it’s red, white, or rosé, a splash of leftover wine always finds a way to make itself useful. These are my favorite ways to use up that extra splash or two.

Wine ice cubes

Read more
How to make a Margarita like they do at Grand Marnier
Here's how they make the tequila staple in France
Beer margaritas

Margarita season is going strong. August is nearly here and with it will come high temperatures begging for refreshing drinks. That calls for options like light macro beers and harmonious cocktails made with agave spirits.

The folks at Grand Marnier know how to make a top Margarita. After all, the French brand has been at it for ages and makes a bitter orange liqueur that happens to do very, very well in the classic cocktail recipe. So, ready your shakers, we've got a recipe to share.
The Grand Margarita

Read more
How to make a Hugo Spritz, the antidote to the next heat wave
A citrus and hibiscus refresher featuring tequila
Hugo Spritz cocktail.

Is it ever not spritz season? Probably not, but we are especially drawn to the drinks when the weather is warm. We've got a great spritz recipe that features both grapefruit and hibiscus.

The Hugo Spritz comes on behalf of 21Seeds Infused Tequila, a brand known for injecting their spirits with intriguing flavors. The cocktail is made with the grapefruit and hibiscus version of their tequila, and also an optional touch of elderflower liqueur for good measure.

Read more