how to sharpen ninja blender blades: 7 Important Tips

The blades of a blender are razor-sharp, that is how they are able to chop through vegetables and ice with ease. Over time the blade dulls from age, excessive use, or getting caught on something hard like an ice cube.

The process of how to sharpen ninja blender blades involves removing any metal sharpening appliances such as steel cutters (whetstones) before using abrasive materials like sandpaper or miscellaneous kitchen supplies such as olive oil.

Read our 7 useful tips on how to sharpen ninja blender blades.

1. Find The Right Sharpener

Pollen in blender

First, you will want to find a sharpening stone that is right for your specific blade. For most blades, this means finding a “1000 / 6000” combination stone. For example, this one on amazon works great for ninja blender blades. You can also buy them at most hardware stores.

Remove The Blade

Next, remove the blender blade from the motor base. This can be a little tricky, but it is easiest to do if you twist it off counter-clockwise. Be very careful when doing this, as the blades are extremely sharp! Once the blender blade is removed, place it on the sharpening stone.

Sharpen The Blade

Now that the blade is removed, it’s time to sharpen it. Start by finding the proper angle to hold your blender blade against the sharpening stone. This will take a minute or two of trial and error. When you have found the right angle, simply push down hard enough that it slides smoothly across the stone.

2. Soak The Stone in Water

Ninja Blade

Once you have your sharpening stone, you will need to soak it in water for about 10-15 minutes. This will help to activate the stone and make it ready for use. You can skip this step if your blender blades are not that dull, but it is still good practice to follow.

1. Determine The Right Way to Hold The Blade When Sharpening

Before you attempt to sharpen blender blades it is important to understand the proper method in holding the blender blade when doing so. There are three basic ways to hold a blender blade for sharpening:

  • The first is to hold the blender blade stationary and move the stone against it
  • Another way would be to hold both the blender and/or stone in place
  • Alternatively, you could hold one end of the blender blade and push its other end onto the stone

2. place the blender blade on a flat surface

Place the blender blade on a flat hard surface when sharpening. This will help you to sharpen blender blades with ease and is one of the most frequently used ways to do so. You can use a bare countertop, but it may be helpful in some cases if the blender blade is placed on something like a cutting board.

3. push the blender blade across the stone

The next step in sharpening ninja blender blades is to place the blender blade against the tip of the sharpening stone and push it across like you were trying to slice through tomatoes or limes. The goal here is to sharpen blender blades across the whetstone, not with it.

3. Remove The Blade From The Blender

Blade From The Blender

In order to sharpen the blade, you will need to remove it from the blender. This can be a little tricky, but it is definitely doable. You may want to use a screwdriver or some other tool to help pry it loose.

Take caution not to harm yourself on the blades. If you are using a blender with removable blade(s), make sure it is unplugged before handling.

Make note of where the blender arm meets the blender base. It is necessary to use this point as your starting point for sharpening, but first, you will need to remove some of the blade’s metal.

Use a sharpening appliance

There are a few different types of sharpening appliances that you can use. One is a steel cutter, which can be found in most hardware stores. Another is a whetstone, which is usually used to sharpen knives.

If you are using a steel cutter, hold it to the blender blade and twist it back and forth at a 45-degree angle to remove metal. If you are using a whetstone, place the stone on a flat surface with the blender blade across from it at an approximate 90-degree angle. Push down slightly and move in small circles until you’ve finished sharpening both sides of the blender.

4. Attach The Blade to The Sharpener

Blender and tips

Once you have removed the blade from the blender, you will need to attach it to the sharpener. Make sure that the blade is facing the correct way, and then screw it in tightly.

Secure The Blade in Place

Once the blade is attached to the sharpener, you will need to secure it in place. This can be done by using a clamp or vise.

Apply Abrasive Material

Now, you will need to apply an abrasive material to the blade. You can use either sandpaper or a sharpening stone. Make sure that you use a consistent motion when sharpening the blade.

Check the Sharpness of the Blade

Once you have finished sharpening the blade, it is important to check its sharpness. You can do this by cutting through some soft material, like Vegetables. If the blade is still not sharp enough, you can repeat the process.

5. Sharpen The Blade

Now it’s time to start sharpening! Hold the sharpener steady with one hand, and use the other hand to guide the blade along with the sharpening stone. Apply moderate pressure, and make sure you are always pushing the blade in the same direction. It can be helpful to watch a video tutorial for this part.

Use Abrasive Materials

Once the blade is sharpened, you will need to use an abrasive material to polish it. This can be anything from sandpaper to baking soda and water paste. Start with the coarsest grit first, and then move on to finer grits until the blade is smooth. Be very careful when you are working with abrasive materials, you could accidentally cut yourself.

You can also use olive oil to polish up the blender blades which will give them a nice shine. Make sure that any abrasive material is something that won’t dull the blade further, or have sharp edges of its own.

Reassemble The Blade

The blender blade is now sharpened and ready to use! Simply reattach it to the blender, and enjoy your freshly-sharpened blades.

Caution: Be very careful when handling the blender blade, as it is now razor-sharp. Do not let small children near it, and store it in a safe place when not in use. Also, if you notice any rust on the blender blade, or if it seems flimsy, throw out the blender. It is no longer safe to use.

6. clean up ninja blender blades

ninja blender

The ninja blender blades are made of stainless steel and therefore should not rust. However, after a while, they will get dirty and need to be cleaned up. The best way to do this is by washing them in the dishwasher or soaking them overnight in warm water with soap. You can also use vinegar or baking soda to remove stains from the blades.

To sharpen the ninja blender blades, you can use a sharpening stone. First, wet the blade with water and then put some drops of oil on the stone. Hold the blade at about a 20-degree angle and sharpen it using gentle back-and-forth strokes. Be careful not to apply too much pressure or you could damage the blade. Repeat this process until the blade is sharp.

You can also use honing steel to keep the blade sharp. First, wet the blade with water and then hold the steel against the blade at a 20-degree angle. Run the steel down the entire length of the blade. Be careful not to apply too much pressure.

7. Reattach The Blade to The Blender

Once you have finished sharpening your blade, you can reattach it to the blender. Make sure that it is attached tightly, and enjoy your newly sharpened ninja blender!

Notes: If you have never had any experience with how to sharpen ninja blender blades before this method, it is strongly advised that you practice on another, unimportant blade first. Be aware of how much material you are removing, and how deeply you are sharpening the blade. It will only take about 15 minutes for your blades to become.

How To Sharpen Ninja Blender Blades: CONCLUSION

Thank you for reading our guide on how to sharpen ninja blender blades. We hope that you found it helpful. Remember to be careful when sharpening the blades and to always use caution when handling sharp objects.

If you have any questions or comments, please feel free to share them in the comments section below. We would love to hear from you.


First, remove the stone-type appliance and all other attachments in order to prepare for sharpening; brush off any food particles left behind onto the towel. Rinse and dry blender base in the dishwasher if possible (or in the sink otherwise).

How to sharpen blender blades with salt?

Many blender blades are not easy to open from the blender mixer, so today we explain how to sharpen your blender blade with salt. If you have a dull blender blade, then put some salt on the blade. The salt is a good abrasive and will help to sharpen the blade.

How to sharpen ninja blender blades without a sharpener?

If you do not have a sharpener, you can use other household items to sharpen your blades. You can use common items such as olive oil, beeswax, or even a pencil sharpener.

How to sharpen ninja blender blades with vinegar?

Another way to sharpen your blades is using vinegar. Add some vinegar directly onto the blade and put it in place so that you can turn on the blender.

And finally, be sure to check out our other posts on ninja blender tips and tricks. Thanks for reading!

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