How to Sharpen your Ninja Blender Blades [Make it Brand New]

Last Updated on August 19, 2022 by

The Ninja blender has, over the years, become an essential kitchen appliance. From making soups and smoothies to sauces, it has become an ideal kitchen companion. While you might have noticed that most blenders are packaged with dull blades, we present several ways to sharpen your Ninja blender blades to help you make nutritious smoothies, soups, and sauces.

Worn blades gather residue faster and tend to break, unlike sharp edges that make your blending experience efficient and quick. Sharp blades help to blend ingredients to a more delicate texture than dull blades ever will.

In the post, I will explain everything you need to sharpen ninja blender blades yourself in a few easy-to-follow steps. Join us on this exciting journey.

sharpen ninja blender blades

A Ninja Blender Blades

Required Materials to Sharpen Your Ninja Blender Blades

To sharpen your Ninja Blender Blades, here is a list of materials required. They Include:

  • Sharpening stone
  • Blade honing guide
  • Mug
  • Water
  • Soap
  • Apron or worn clothes

Step by Step Guide to Sharpening Your Ninja Blender Blades 

Step 1: Disconnect The Ninja Blender From Power Source:

The first step before you decide to sharpen your ninja blender blades is to first disconnect your Ninja blender from its power source before you start working on sharpening the blades. While working, safety is paramount, and this is the key to working safely with your Ninja blender.

Step 2: Remove The Jar From The Base:

When removing the jar from the base, ensure it is cool. It is not advisable to work on hot stuff as it may cause harm.

Step 3: Separate The Blades From The Base:

Your blades are attached to the base, as it contains the motors that turn the blade during the blending process. In order to separate the blades from the base, properly loosen the screws, and affix the blade. You can use an Allen key, a wrench, or a screwdriver for this operation.

Step 4: Properly Clean The Blades With Care:

Before sharpening blades, ensure they are properly cleaned to remove all food particles. Food particles will hamper the smooth sharpening of your Ninja blender’s blade, making the process tedious. Wipe the blade’s surface with a damp cloth and allow it to air dry or use any cleaning method already highlighted in our previous articles.

Step 5: Sharpen The Blades Of Ninja Blender:

Sharpening the blades can be done by using a grindstone or a sharpening stone. Both methods are safe and simple, but require you to be careful while handling the blades. It is required for safety that you wear a glove when sharpening as the blades are sharp and can cause injury.

Step 6: Check The Sharpness Of The Blades:

You can check your blade’s sharpness by running it over a piece of paper. If it cuts through easily, then it is done right, otherwise, you sharpen again. Make sure to clean the blades before reassembling them.

Step 7: Reassemble The Blender:

Reassembly of the blades should be done once you are satisfied with the blade’s sharpness. Screws should be placed properly according to the instruction manual, and ensure they are steadfast to ensure the blender’s safety.

Step 8: Store your blender properly:

After reassembling your blades, place them in their authentic position and close the lid. Ensure all screws are in their proper place before storing away your blender.

Step 9: Reconnect to Your Power Source Blender and Enjoy:

After sharpening your Ninja blender blades using the aforementioned steps, you can plug in and enjoy. Sharpening ensures that the blade is fit for purpose. It is a simple process that does not stress the motor or the blades itself. This process requires only focus and patience in getting it done. It will ensure you don’t end up dumping your blender for a new one anytime soon. Replacing the blade is an option if you are not satisfied with the outcome produced by your blades after sharpening. Know this – your blender’s health depends on you, and you must maintain it for optimal performance.

Tips to Maintain And SharpenYour Ninja Blender Blades

Tip 1: Follow Manual’s Instructions for Assembling and Disassembling:

To correctly assemble or disassemble your Ninja blender’s blade, you should read the operation manual carefully to understand the procedures. You should aptly follow the order of assembly to ensure parts are put together properly. The improper assembly of blades can damage the blender.

Tip 2: Ensure you do not Over-Sharpen the blades:

Over sharpening the blades can make them lose their edge, so take care while sharpening your Ninja blender’s blade. Refrain from applying too much pressure when grinding, and ensure it is in the right direction.

Tip 3: Occasional sharpening is a Good Idea:

It is vital to sharpen the blades of your blender occasionally to maintain optimal blender performance. Several tips are available in this article on how to effectively sharpen your blades, including methods of sharpening to keep your blade healthy.

Tip 4: Identify When to Replace the Blades:

Blenders used for the home kitchen would require less frequent blade changes when compared to those used for commercial kitchens. With this in mind, you should be able to understand when to change the blades of your Ninja blender. Factors such as the inability to cut through fruits, as usual, should ring a bell and prompt a change of blades. However, commercial blender blades should be changed yearly or earlier as required. It takes longer for home blenders, but watch out for warning signs.

Tip 5: Clean the Blade Up Before Putting It in the Jar Again:

Rust can occur when the blades of your Ninja blender are not allowed to dry before replacing adequately. Air-drying your blades after cleaning is advisable to prevent rusting and safeguard your Ninja blender blades.

Tip 6: Always use your Gloves when working with the Blades:

Gloves are a safety item when working with your blades. Your blender’s blades are sharp and would cause harm when proper care is not taken. So keep your gloves on when working with your Ninja blender blades.

Tip 7: Keep the Blender Clean Before and After Use:

Ensure your blender is clean before and after use. Leftovers in the jar of your Ninja blender might end up damaging your blades in the long run, not to think of other potential problems such as odour, bacteria build, etc. Keep your blender’s pitcher clean to avoid damage to your blender blade.

Ninja Blender Blades – what makes it blunt?

A straightforward reason your blades can become blunt is extended use. The material of your blade is stainless steel which is tough but not as unyielding as other metals. With this in mind, it is vital to sharpen your blender’s blade once you notice it is blunt. Several methods exist for sharpening the blades of your Ninja blender.

The first method involves using grindstones. This method is effective and straightforward. The Ninja blender blades are sharpened by placing the grindstone on a flat surface and placing the blades on top. Apply medium pressure to the blades by gently pressing them with your hand while moving them back and forth across the face of the grinding stone.

Another means involves using a sharpening stone. This method consists in placing the Ninja blender blade on top of the sharpening stone and gently applying pressure to the blades by moving them across the face of the sharpening stone. The sharpening stone should be placed on a flat surface. Also, you can hold the blade using a vice grip while rubbing against the sharpening stone.


Do Ninja Blades Need to Be Sharpened?

The Ninja blender blades need to be sharpened but not as often as your traditional blender. The edges of the Ninja blender are made from durable stainless steel and will last for a while before requiring sharpening. With time, they become blunt and will require sharpening, which is a pretty straightforward process.

How to Sharpen Blender Blades With Salt?

Ninja blender blades require occasional sharpening to extend the product’s life. Salt sharpening is an excellent way to make this happen. Here is a quick look at the procedure;

Steps to sharpen Ninja Blender Blades with Salt

  • Douse your Ninja blender blade with water and then sprinkle salt on it.
  • Use your sharpening stone to whet the blade until it is sharp.
  • Clean the blade and leave it to dry before replacing it.

Be sure to apply moderate pressure when using this sharpening method, and watch your fingers during these steps.

How to Sharpen Blender Blades with Eggshells?

Another great option to sharpen your blades is using egg shells. This method is quick and reliable when you do not have a sharpener. Let’s quickly outline the steps you take for optimal results.

Steps to Sharpen Ninja Blender Blades with Eggshells

  • Unscrew your blades from the bottom of the pitcher
  • Place the eggshells on the blades.
  • Rub a sharp object against the shell to sharpen the blade.
  • Continue rubbing for a couple of minutes till the blade is sharpened.

You have to observe your fingers during this procedure to ensure safety.

What to Do If Your Ninja Blender Blades Get damaged?

Damage to NInja blender blades need not throw you off balance or cause you to throw away your sturdy blender. You can have the blades replaced.

Ninja blender series have specially designed replacement parts for all their blender components, and they are available at your local or online store. These parts are also very affordable. Replacing worn-out parts of the blender helps to bring back the spark in your blender, allowing enjoy the benefit of using the Ninja blender brand. Replacing a worn-out part, especially the blade, is an easy task that wouldn’t take much of your time.

Top Tips on Maintaining Ninja Blender and Its Blades 

  1. Read and adhere to the ninja blender operational manual aptly when assembling and disassembling the blender’s blades.
  2. Sharpen the ninja blender blades as needed.
  3. Frequent use of the blender can dull the blade and sharpen them as against buying a new blending machine.
  4. Always clean the base properly before assembling.
  5. Wear protective gear when sharpening the blades to avoid harm.
  6. Clean your blender after each use, and keep it in a safe place.
  7. The motor base should not be allowed in the water, instead should be cleaned with a cloth or stiff brush.
  8. Clean your blender blades either with a dishwasher or hand wash. When using a dishwasher, keep it at a distance from the jar to avoid physical damage.
  9. Always use the proper wrench when disassembling and assembling the blender’s blade.


Getting the most out of your blender’s blade requires you to sharpen them now and again. Sharpening them will take a few minutes, and it guarantees the top performance of your Ninja blender. Don’t forget that to clean the blade, you have to loosen it from the housing. You do this by first unscrewing the lid from the top. Then apply a wet towel or cloth to clean the edges and restore them to their proper place. Hope to see you in the following article; thanks for being here.

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