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Ninja NeverDull Knife Set Review 2026: Is the Built-In Sharpener Worth It?

July 5, 2026 12:13 PM
Ninja NeverDull Knife Set Review 2026: Is the Built-In Sharpener Worth It?

I tested the Ninja NeverDull knife set in my kitchen. I wanted to see if it stays sharp. This set has a special block. The block has a small built-in sharpener on the side.

Many kitchen knives get dull fast. Slicing tough food becomes hard work. This set promises to stay sharp for ten years. I will share my honest thoughts on how they work in real daily cooking.

You can BUY AMAZON to get this set. It is a great choice for home cooks. Let us look at what makes these forged German steel knives special for your home.

What is the Ninja Foodi NeverDull Premium Knife System?

This system is a set of kitchen knives. It comes with a heavy knife block. The block has a sharpening wheel inside. You run the knives through it to keep them sharp over time.

The blades use high carbon German stainless steel. This steel is strong and resists rust. The knives are forged, not stamped. This means they are made from one thick piece of solid metal block.

They also have a full tang. The steel goes all the way through the handle. This gives the knife a good weight. It feels balanced and safe in your hand when you cut.

How the Built-In Knife Sharpener Works

The built-in knife sharpener is the main feature. It is a slot on the side of the block. Inside, there is a stone wheel. This wheel sharpens the edge of your knife blade.

To use it, you put a clean knife into the slot. Then, you slide the lever on the side. You must slide it up and down ten times. It is very fast to do.

The wheel hits the blade at the perfect angle. It applies the right amount of force. This makes it very easy to sharpen your knives at home without any hard manual work. You can BUY AMAZON to get this set. It is a great choice for home cooks.

You only need to do this every two weeks. It keeps the knives cutting like new. You do not need to buy a separate tool to keep your blades extra sharp.

Testing the Knives: How Well Do They Cut?

I tried these knives on many foods. First, I cut a ripe tomato. The chef knife sliced through it easily. It did not squish the tomato or tear the soft red skin.

I chopped hard carrots and raw meat next. The blades glided through without stopping. The grip felt comfortable. My hands did not get tired even after a lot of food prep.

The steak knives in this set are also very sharp. They cut through thick meat with ease. They do not have tiny teeth, so they do not rip your juicy steak meat.

Comparing the Sets: 12-Piece vs 17-Piece

Ninja offers different sizes for this knife set. The two most popular choices are the 12-piece and the 17-piece sets. Both sets have high quality blades and the same black block.

You should choose based on how much you cook. Some people only need a few basic tools. Other cooks want a tool for every task. Let us break down the exact differences.

The Ninja NeverDull 12-Piece Set

The 12-piece set is great for smaller kitchens. It includes an 8-inch chef knife, a 5-inch Santoku, and a 3.5-inch paring knife. It also comes with six sharp steak knives.

This set also has kitchen shears and the wood block. It does not take up too much space on your counter. It is a smart choice if you have a tight budget.

The Ninja NeverDull 17-Piece Set

The 17-piece set is the biggest option. It has everything in the smaller set plus more. You get a bread knife, a slicing knife, and a utility knife. You also get eight steak knives.

This set is best for people who love to cook large meals. It is also great for big families. The block is wider to hold all the extra blades in one safe place.

Here is a simple table to show the differences between the two sets. It can help you choose the best one for your kitchen counter. Let us look at the exact details.

Feature12-Piece Set17-Piece Set
Chef Knife8-inch8-inch
Steak Knives6 knives8 knives
Bread KnifeNo8-inch
Slicing KnifeNo8-inch
SharpenerBuilt-inBuilt-in

Are Ninja NeverDull Knives Worth It?

Many people ask if this set is worth the price. In my experience, the answer is yes. The knives are strong and the sharpener works very well. It saves you lots of time.

Buying separate professional knives can cost a lot of money. You also have to buy tools to keep them sharp. This set gives you everything in one simple, neat package.

The German steel is very tough. It holds an edge well even before you sharpen it. The built-in sharpener makes it simple for anyone to keep the blades in great working shape.

How Long Do Ninja NeverDull Knives Last?

These knives are built to last for a very long time. Ninja offers a ten-year guarantee on this set. This shows they trust the strength of their forged German steel blades.

To make them last, you must care for them the right way. Do not drop them on hard floors. Use a soft wood or plastic cutting board when you chop your food.

You should also clean the sharpening stone inside the block. This wheel collects metal dust over time. Rinse it under water every six months to keep it working extra great.

Can You Put Ninja NeverDull Knives in the Dishwasher?

No, you should never put these knives in the dishwasher. The hot water and harsh soap can damage the steel. It can also make the sharp edges dull very, very fast.

The knives can also bang against other dishes inside the machine. This can chip the blades or scratch the handles. Hand washing is the best way to keep them safe and clean.

Wash each knife with warm water and mild soap right after use. Dry them with a soft towel immediately. Never leave them wet in the sink for too long of a time.

Do Ninja NeverDull Knives Rust?

Like all stainless steel, these knives can rust if they are not cared for. German steel has high rust resistance. But it is not completely rust-proof if left wet in the sink.

If you leave water on the blade, tiny brown spots can appear. Acidic foods like lemons or tomatoes can also cause rust. You must rinse them off quickly after cutting these foods.

If you see any rust spots, do not worry. You can clean them off easily. Use a gentle scrub with a little baking soda and water to remove the brown spots.

Pros and Cons of the Ninja NeverDull Knife Set

Every product has good and bad points. This knife set is no different. It is good to know both sides before you buy. Here is what we found during our kitchen tests.

What We Like (Pros)

The built-in sharpener is very easy to use. It keeps the blades razor-sharp without any fuss. You do not need any special skills to make the edge look perfect and sharp.

The forged German steel is very strong. The full tang design gives each knife a great weight. They feel like expensive, high-end knives when you hold them in your hand to cut.

The knife set has a ten-year guarantee. This is a very long time for kitchen knives. It gives you peace of mind when you spend your hard-earned money on it today.

What We Do Not Like (Cons)

The knife block is very large. It takes up a lot of space on your kitchen counter. It might not fit well if you have a very small kitchen space.

You cannot put these knives in the dishwasher. You must wash them by hand every single time. This can be annoying if you do not like washing dishes by hand daily.

You can only sharpen Ninja knives in this block. The slot is made to fit their exact shape. Do not try to sharpen other brands of knives in it at all.

Final Verdict: Should You Buy It?

The Ninja NeverDull knife set is an excellent choice for home cooks. It solves the biggest problem with kitchen knives. It stops them from getting dull and useless in your kitchen.

The built-in sharpener works very well. It is fast and foolproof. You will love how easy it is to keep your blades cutting like new every day. This set is a great investment.

If you want to buy this set, you can BUY AMAZON to get it. It will make your cooking prep much faster. You will enjoy slicing food again with these super sharp blades.

How to Sharpen Ninja NeverDull Knives?

Sharpening your knives with this block is very simple. First, make sure the knife is clean and dry. Put the knife into the sharpening slot on the side of the block.

Push the lever on the side all the way down first. Then, pull it all the way back up. Do this ten times in a row for a quick knife hone job.

Make sure you use full strokes when you slide the lever. The lever must go from the very top to the very bottom. This ensures the whole blade gets super sharp.

After you finish, press the release button to take the knife out. Wipe the blade with a dry cloth to remove any tiny metal dust. Your knife is ready to cut food.

Why Forged German Steel Matters.

German steel is famous for its high quality. It is very hard but still flexible. This means it will not chip easily when you cut through tough kitchen food items.

Forged steel is made under great heat and pressure. It is much stronger than stamped steel. Stamped knives are just cut out of a flat sheet of thin metal sheets.

The full tang design also adds strength. Since the steel goes through the whole handle, the knife will not snap. It is built to handle heavy daily use in your kitchen.

How to Care for Your Knife Block

The knife block is the home for your blades. You must keep it clean and dry. Never put wet knives back into the slots of the block. This can cause mold and ruin the wood.

Wipe the outside of the block with a damp cloth. Do not use harsh chemicals. Dry it with a towel right away to protect the finish of the block wood.

If you want to buy this great set, you can BUY AMAZON to get it. It is a smart buy that will last for years. It will make your kitchen tasks much easier.

Frequently Asked Questions

Can you put Ninja NeverDull knives in the dishwasher?

No, you should not put them in the dishwasher. The high heat and harsh chemicals can damage the steel and dull the edge. Always hand wash and dry them.

How often should you sharpen Ninja NeverDull knives?

You should sharpen them every two weeks if you use them daily. This keeps the blades in perfect shape. If you use them less, sharpen them when they feel dull.

Do Ninja NeverDull knives rust?

They can rust if you leave them wet. They are made of German stainless steel, which resists rust. But you must wash and dry them right after use to prevent spots.

Can you sharpen other brands of knives in the block?

No, you cannot. The built-in sharpener is made only for Ninja knives. Other knives may not fit and can damage the sharpening wheel inside the block slot.

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