The Ninja SP351 is a versatile food processor attachment that turns your Ninja blender into a full kitchen prep station. It offers slicing, shredding, and dough mixing capabilities with easy assembly and cleanup. Our honest review covers real-world performance, pros, cons, and whether this gadget earns a spot on your countertop.
Key Takeaways
- Versatile Accessory: The Ninja SP351 works as a food processor, slicer, and shredder attachment for compatible Ninja blenders.
- Easy Setup: Assembly is straightforward and takes less than two minutes without any tools.
- Dishwasher Safe Parts: Most components are dishwasher safe, making cleanup a breeze after every use.
- Solid Motor Power: It pairs well with high-wattage Ninja bases for consistent blending and processing results.
- Affordable Price Point: It delivers good value compared to buying a standalone food processor.
- Limited Capacity: The processing bowl is smaller than full-size food processors, so it is best for household-sized batches.
- Great for Meal Prep: Slicing and shredding discs make quick work of vegetables, cheese, and dough tasks.
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Ninja SP351 Review Honest Thoughts Worth Your Money
Kitchen gadgets can clutter your counter fast. So when you invest in something new, you want it to earn its keep. The Ninja SP351 promises to turn your blender into a food processor. But does it really deliver? We put this attachment through its paces to find out.
In this Ninja SP351 review, we cover everything from build quality and performance to cleanup and value. Whether you are a smoothie lover or a meal prep pro, this guide helps you decide if the Ninja food processor attachment is right for your kitchen.
The Ninja SP351 belongs to a growing trend of multi-function kitchen appliances. Instead of buying five separate gadgets, you get one attachment that handles slicing, shredding, and dough mixing. That sounds great on paper. But how does it perform in real life? Let us dive in.
What Is the Ninja SP351?
The Ninja SP351 is a food processing system designed to work with select Ninja blender bases. It comes with slicing discs, shredding discs, and a dough blade. You simply lock the bowl onto your compatible Ninja blender, add your ingredients, and let the motor do the work.
This is not a standalone appliance. It is an accessory that expands the functionality of your existing Ninja blender system. Think of it as a way to get two appliances in one footprint on your kitchen counter.
What Comes in the Box
When you open the package, you will find the following items:
- Processing bowl with lid
- Slicing disc for even vegetable cuts
- Shredding disc for cheese and vegetables
- Dough blade for mixing and kneading
- Feed chute with pusher
- Recipe guide with starter ideas
Everything feels sturdy and well-made. The plastic is thick and does not flex during use. The discs lock in place securely, which gives you confidence when running the machine at high speed.
Performance and Power
This is where the Ninja SP351 really shines. When paired with a powerful Ninja base, the processing performance is impressive. The motor delivers consistent power through the attachment, and you can feel the difference compared to cheap food processors.
Slicing Performance
The slicing disc produces uniform cuts on vegetables like potatoes, cucumbers, and onions. We tested it with carrots and got perfectly even slices every time. The feed chute is wide enough to handle larger pieces, so you do not need to cut everything down to tiny bits first.
For meal prep, this saves a ton of time. You can slice a full onion in seconds. The results are far more consistent than doing it by hand with a knife.
Shredding Performance
The shredding disc handles cheese and vegetables with ease. We shredded cheddar cheese for a nacho recipe and it came out perfectly fine. The disc also works great for shredding cabbage and carrots for slaw or hash.
One thing to note: the shredding disc creates some fine crumbs with softer cheeses. This is normal for most shredders, but it is worth knowing before you start.
Dough Mixing
The dough blade works well for pizza dough and bread dough. It mixes ingredients thoroughly and develops a decent gluten structure. We would not call it a replacement for a stand mixer, but for occasional dough tasks, it gets the job done.
Build Quality and Design
The Ninja SP351 feels solid and well-engineered. The bowl is large enough to handle typical family-sized portions. The lid locks securely and includes a feed tube so you can add ingredients while the machine runs.
Design-wise, it has a clean, modern look that fits most kitchen styles. The controls are simple, and there are no confusing buttons or settings. You attach the disc you need, add your food, and press start.
Compatibility
The SP351 works with Ninja blender bases that have the compatible drive coupling. Before purchasing, check that your base model supports food processor attachments. Popular compatible models include the Ninja Professional Kitchen System 1500 Watts and other Ninja blender systems with the right coupling.
If you are not sure which Ninja base you have, check the product manual or look for the coupling type on the base unit. This is an important step because the attachment will not work without a compatible motor base.
Setup and Cleanup
One of the best things about the Ninja SP351 is how easy it is to set up. The bowl, lid, and disc all click into place with a satisfying lock. You do not need any tools or screwdrivers. Total setup time is under two minutes.
Cleanup is equally simple. The bowl, lid, discs, and blade are all dishwasher safe. You can toss them in the top rack of your dishwasher after use. For quick rinses between batches, warm soapy water and a sponge do the job perfectly.
Compared to full-size food processors, the smaller parts are easy to handle and store. The whole system nests together compactly, so it does not take up much cabinet space.
Pros and Cons
Every product has strengths and weaknesses. Here is our honest breakdown:
Pros
- Versatile functionality with slicing, shredding, and dough capabilities
- Quick setup and easy assembly without tools
- Dishwasher safe parts for hassle-free cleanup
- Consistent performance on vegetables, cheese, and dough
- Affordable price compared to buying a standalone food processor
- Compact design that saves counter and storage space
- Wide feed chute reduces prep time for larger ingredients
Cons
- Requires a compatible Ninja base to function
- Smaller capacity than full-size food processors
- Can be noisy at higher speeds, like most blenders
- Not ideal for large batch processing for big families or entertaining
- Dough blade works but is not a replacement for a heavy-duty stand mixer
Who Should Buy the Ninja SP351?
The Ninja SP351 is a great fit for several types of users. If you already own a compatible Ninja blender and want to expand its capabilities, this attachment is a smart purchase. It is especially useful for people who do regular meal prep and need quick slicing and shredding.
It is also ideal for small to medium-sized households. The capacity is perfect for daily cooking tasks without being too bulky. If you hate washing extra dishes and gadgets, the dishwasher-safe parts will make you happy.
On the other hand, if you do not already own a Ninja blender, buying just the SP351 attachment does not make sense. You need the motor base to power it. In that case, you might want to look at the best Ninja blenders that come with food processor capabilities built in.
For those who process large quantities regularly, a standalone food processor might still be the better choice. The Ninja SP351 is best as a supplementary tool that handles quick jobs efficiently.
How It Compares to Other Options
When shopping for a food processing solution, you have several choices. Standalone food processors like Cuisinart or KitchenAid models offer larger capacity and more powerful motors. But they also cost more and take up more space.
The Ninja SP351 occupies a sweet spot in the middle. It gives you food processing power without adding another big appliance to your kitchen. For the price, it delivers solid performance that rivals more expensive options for everyday tasks.
If you are on a budget or short on counter space, the Ninja SP351 is a practical choice. It lets you get more done with the equipment you already own.
Tips for Getting the Most Out of Your Ninja SP351
To get the best results from your Ninja SP351, keep these tips in mind:
- Chop ingredients into smaller pieces before adding them to the bowl for smoother processing.
- Do not overfill the bowl leave room for the food to move around the discs.
- Use the pulse function on your Ninja base for better control over texture.
- Alternate between hard and soft ingredients for even shredding and slicing.
- Clean parts immediately after use to prevent food from sticking and drying on the discs.
- Store discs in the bowl to keep everything organized and save cabinet space.
For more tips on getting the most from your Ninja blender system, check out our guide on how to use your Ninja blender with good tips and guides. It covers helpful techniques that apply to all Ninja attachments.
Final Verdict
So, is the Ninja SP351 worth your money? Our honest answer is yes, for the right user. If you already have a compatible Ninja blender base, this food processor attachment adds real value to your kitchen. It handles slicing, shredding, and dough tasks with ease and consistency.
The build quality is solid, cleanup is simple, and the price is reasonable. It is not perfect for everyone, especially large families or those who process huge volumes regularly. But for everyday cooking and meal prep, it gets the job done well.
If you are looking to expand your Ninja blender’s capabilities without buying a whole new appliance, the Ninja SP351 is a smart and practical choice. It earns a spot in our kitchen recommendation list.
To keep your Ninja equipment running at its best, make sure to follow proper cleaning and maintenance routines. Regular care will extend the life of both your blender and the SP351 attachment.
Frequently Asked Questions
Is the Ninja SP351 compatible with all Ninja blenders?
No, the Ninja SP351 only works with Ninja blender bases that have the compatible drive coupling. Check your base model before purchasing to ensure it supports food processor attachments. Popular compatible models include the Ninja Professional Kitchen System 1500 Watts.
Can the Ninja SP351 replace a full-size food processor?
It can handle most everyday food processing tasks like slicing, shredding, and dough mixing. However, it has a smaller capacity than full-size food processors. For large batches or heavy-duty processing, a standalone food processor may still be the better option.
Are the Ninja SP351 parts dishwasher safe?
Yes, the bowl, lid, discs, and blade are all dishwasher safe. You can place them on the top rack of your dishwasher for easy cleanup. For quick rinses between uses, warm soapy water works perfectly.
How loud is the Ninja SP351 during operation?
The SP351 is about as loud as a standard Ninja blender since it uses the same motor base. It is not silent, but it is not excessively loud either. We recommend using it during daytime hours if noise is a concern in your household.
What is the warranty on the Ninja SP351?
Ninja typically offers a limited warranty on its accessories. Check the specific terms that come with your purchase, as warranty coverage may vary by retailer and region. Registering your product on the Ninja website can help you stay covered.
Can I use the Ninja SP351 for making nut butters or sauces?
The SP351 is designed primarily for slicing, shredding, and dough mixing. It is not optimized for making smooth nut butters or sauces. For those tasks, you are better off using the blender jar with the standard Ninja blades for smoother results.
