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How to Sharpen Blender +Blades

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Our kitchen blender needs sharp blades for the performance of a variety of tasks. Unfortunately, dull blender blades can get in the way. Luckily, regular blender blades are stainless steel, and you can sharpen them. That said, sharpening worn blender blades is no simple task if we want to cut like kitchen knives. However, we can help you make your dull blades as sharp as a knife in no time. Whether you own a top-rated blender or a mid-range one, sooner or later, you may need to sharpen the blades. Read on to find out how to sharpen blender blades.


  • Blender blades get dull over time, but you can sharpen them at home with a bit of time and a sharpening stone.
  • Before sharpening the blades, clean your glass or plastic pitcher and the edges.
  • Wear safety gloves and move the blades away from you while you sharpen along with the stone.

Unplug and Disassemble the Blender

If you’ve recently used your kitchen blender, unplug the blender base from the wall to avoid any electrical dangers. We also don’t want to accidentally turn the unit on while working on the metal blades. Next, unscrew the blender jar from the blender base. It’s important to know how to work a blender, whether it’s taking it apart to clean or using it to make your favorite smoothie. And remember, knowing how to clean your blender will ensure those smoothies always taste their best. Thankfully, sharpening your blades only takes a few simple steps.

Wash the Blender for a Clean Work Surface

We want to do the most effective work on the blades, so we want them to be sparkling clean. If there are any food bits or grime on the blades and blender jar, we need to clean them up. Also, we want the blender container to be as clean as possible so you can work in peace. So, use warm water, liquid soap, and a clean sponge to spruce up the blender container. And, you’ll want to ensure any great blenders for countertops are clean and ready to use in your kitchen space.

Unscrew the Blades from the Blender Jar

You will see a plastic or metal base at the base of the glass blender jar. Give it a counterclockwise twist to screw it away from the blender container. It should come off quickly, but you can run the bottom under some warm water if it gives you trouble. Also, put the glass container in a safe place, so we don’t accidentally knock it off the counter while working.

Separate the Blender Blades from the Base

After unscrewing the base of the blender pitcher, you should have the underside, a rubber seal or ring, and the blades. Remove the blades and put the bottom and seals in the exact location as the glass blender container.

Clean the Blades Once More

If stubborn food particles or grime remain on the blender blades, you must break out the sponge and soapy water again for a quick wash. You can either submerge the blades in the sink, or you can scrub the blades over the sink, reapplying soapy water as needed.

Sharpen the Blades with a Sharpening Stone

Start by running one of the blades’ edges along with a sharpening stone. For the best sharpening, run the blades in a way that keeps them at the exact angle of the blender blades. Remember to move all blades away from you to keep from getting nicked. Also, wear protective gloves for extra safety. Once you’re finished with one side of the blade, turn it over and sharpen the other side. Repeat the sharpening process for each blade edge until they are to your liking.

Reassemble Your Blender and Test Your Work

Once you sharpen all the blades, it’s time to put your stationary blender back together. First, make sure your blades, glass container, and other parts are clean and towel-dried. Next, put your blender blades back in the base and screw them on the blender jug. The next time you turn on your blender, you can be sure it’ll slice like new. However, if your blender is louder than you’d like, you can learn how to make your blender quieter. A quieter blender with sharp blades will improve the blending experience. Whether you have a glass jar blender or plastic, we have other guides to help you out, like how to repair a blender motor. Alternatively, for some general maintenance tips, read our article on how to fix a blender.

On the other hand, if you need to replace your unit altogether, then you’ll want to check out the best blender with a glass jar.

Moreover, if you’re after one of the silent blenders that won’t be so noisy, we have a list for you.

Insider Tip

If you’ve recently used your kitchen blender, unplug the blender base from the wall to avoid any electrical dangers.


Do blender blades need to be replaced?

Blender blades typically remain sharp for the entirety of the kitchen blender’s useful lifetime. That said, some companies sell replacement blender blades if they are damaged.

How do you clean a blender?

If you’ve made something liquid like a smoothie, you can easily clean it by blending some soapy water and lemon slices. After a couple of minutes of blending, pour out the soapy water and lemon slices. Then, rinse the blender container with clean water and dry it.

Should I get a blender or a food processor?

Blenders primarily mix liquids and soft foods, but more powerful models can handle stuff like nuts, raw vegetables, and ice cubes. Food processors are for chopping, mincing, and emulsifying more difficult things like nuts. Pick the one that will help make the recipes you’re craving.

STAT: “Eating healthier” is the top reason given by personal blender users (33%) who are using the appliance more. In comparison, 31% of full-size blender users say they’re using it more often because they’re drinking more smoothies. (source)


Remember to move all blades away from you to keep from getting nicked. Also, wear gloves for extra safety.

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