Best knife sharpeners 2021: our top five sharpeners for your kitchen knives

The best knife sharpeners are here to keep your favorite kitchen tools in top shape. Whether you're chopping, slicing, carving or dicing, a kitchen knife is an essential tool-but keeping them sharp is the key. With people spending more time at home this year than usual, everyone has had to embrace cooking. Whether you’ve been rustling up meals in-between childcare or prepping gourmet extravaganzas for your household, it is fair to say that kitchens are getting a good workout. It probably doesn't come as a surprise that the best kitchen knives are often the most used tool in a kitchen, so using a knife sharpener and keeping them in tip-top condition is important. Sharp knives will not only help with your food preparation but it also means that dull blades no longer need replacing, just sharpening. Nobody likes a blunt blade, and after all, a sharp knife is a safe knife.

A good knife sharpener can keep your prized paring knife as sharp as the day you bought it, or turn a budget-friendly chef's knife into a chopping champion - but with so many different options on the market how do you choose? From hand-held whetstones to ceramic wheels we have narrowed it down to the best user-friendly household kitchen knives sharpeners to keep you slithering and slicing. 

The best knife sharpeners

(Image credit: Zwilllig)

If you are looking for an all-rounder when it comes to knife sharpeners to help keep your entire block of blades finely tuned then the Zwilling V-Edge Sharpener is for you. Hone standard knives as often as necessary to maintain a sharp edge or polish your finest blades including Japanese knives to achieve an extremely smooth razor-sharp edge. 

The sharpener comes with four color-coded ceramic rods for fine and rough use. These are easily switched in and out, and can be kept in the base of the sharpener to save space in your kitchen.

(Image credit: Miyabi )

Whilst specifically designed for use with the Miyabi range of kitchen knives, this hand-held knife sharpener can also be used to maintain and sharpen other plain edge kitchen knives. 

The Miyabi 2-Stage Diamond/Ceramic Sharpener is quick and easy to use. It has a diamond roller which will grind rougher edges, and a ceramic side for finer use and finishing up. It's covered by a limited lifetime warranty and has a safety grip and clear plastic lid to make the job even easier. 

(Image credit: Sharp Stone)

This 1000/6000 Sharp Pebble Premium Whetstone Knife Sharpening Stone brings the Japanese art of knife sharpening to your kitchen. The country is famed for its meticulous craftsmanship and sharp knives, so you can trust that it will give your knives a perfect finish. 

A blunt knife is a drag and makes the entire cooking process a chore but after sharpening your knives on this stone you’ll wonder how you ever managed without it. The combination stone has two sides - one which is 1000 grit and another which is a smooth 6000 grit. It is advised that you apply water throughout the sharpening process for the best results. Although we adore the professional end results, it can take a bit of practice to achieve the optimum angle but as they say, practice makes perfect. 

(Image credit: Amazon)

This compact and efficient sharpener may not be suitable for all knives but it proves to be a fantastic option for those on a budget. The steel sharpener revolves around the plastic housing to revive your dull blades. Unlike other options, this little knife sharpener is not only perfect for those on a budget, it is also ideal for small spaces and can be neatly tucked away when not in use. 

The Wusthof Precision Edge 4 Stage Knife Sharpener comes with four draw through slots that provide a fast and precise sharpening. The diamond surface slot repairs damaged edges whilst the tungsten steel slot creates that perfect ‘V’ edge to the blade. The final stage is the crossed ceramic stone for the final polishing. As a bonus, it has an ergonomically designed soft grip handle and a non-slip base proving a steady platform when in use.

(Image credit: Miyabi)

Designed in Japan, the Miyabi Sharpening Steel ends up on top when it comes to the traditional hand held steel rod sharpener.

Although not technically a sharpener, the strokes of the steel against the knife help to straighten out the very edge of the blade and realign it, in turn giving the knife a cleaner cut. This particular steel rod has a soft grip handle that is comfortable to hold and also comes with a finger guard to protect your digits.

How often should I sharpen my kitchen knives? 

Typically speaking, kitchen knives only need sharpening every few months. However, if you find that your knife is under-performing it may be worth sharpening it and seeing if that makes a difference. 

In general, high quality kitchen knives need to be sharpened less regularly than cheaper alternatives, but some suggest that you hone them every few weeks. 

Honing vs sharpening knives

What is honing, you ask? Not all kitchen knives sharpeners are designed for honing, because this process isn't about removing bluntness but instead maintaining sharpness. Doing this removes any roughness from the blade and keeps it slicing smoothly. It's easier to do this using a whetstone or steel rod because you can angle your blade more intentionally.

How much is a knife sharpener? 

If you've invested in a flashy set of kitchen knives, pairing them with the best kitchen knives sharpener is a smart move. It doesn't have to be an expensive one though, and you can find some perfectly good sharpeners for under $20. Prices can climb up to as much as $100 for a seriously smart knife sharpener though. These sharpeners are usually capable of handling all sorts of knives including serrated and Japanese models, so if you've invested in a high quality knife set it's definitely worth pairing it with a sharpener that's designed to match it.