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Customer Reviews for Ninja DoubleStack XL Air Fryer (SL401)

4.6
123 reviews
5 star
77%
4 star
15%
3 star
2%
2 star
2%
1 star
4%
Most helpful positive review
Posted Jun 8, 2024
Fabulous device
I just received my Ninja air fryer that air frys, bakes, dehydrates, roasts.....and so far have roasted a whole roasted chicken, warmed leftovers, and air fried sweet potatoes. Everything turns out amazing! It is quick and efficient and easy to clean, something I was worried about. I can't even overcook or burn anything anymore, as I set the time ad the unit turns it...
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Most helpful critical review
Posted Apr 7, 2025
Missing Replacement Part Ruins a Great Product
I really wanted to love the Ninja Double Stack Air Fryer SL451. It’s compact, powerful, and comes with a smart thermometer feature that was the main reason I bought it. Unfortunately, I lost the thermometer—and that’s when the problems started.
Ninja does not sell a replacement thermometer for this model. That means if you lose it (or it stops working), the feature bec...
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Most helpful reviews
coop74
Reviewed at:
Ninja
Posted Apr 7, 2025
Missing Replacement Part Ruins a Great Product
I really wanted to love the Ninja Double Stack Air Fryer SL451. It’s compact, powerful, and comes with a smart thermometer feature that was the main reason I bought it. Unfortunately, I lost the thermometer—and that’s when the problems started.
Ninja does not sell a replacement thermometer for this model. That means if you lose it (or it stops working), the feature bec...
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Bee75
Reviewed at:
Ninja
Posted Apr 1, 2025
Does not stack up in my book.
This is the first time I officially have to say I am not happy with a ninja product. I bought this because I thought it would be a great space saver in my kitchen considering I don't have a lot of counter space. And I was super excited because I would be able to cook chicken wings in it all at one time instead of having to do batches of 8 to 10 at a time.
When I first...
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cynthiar128_17
This reviewer received a free product or coupon in exchange for an unbiased review of the product
Reviewed at:
Ninja
Posted Mar 30, 2025
The Ninja Double Stack Smart Air Fryer is easy to
I received the Ninja Double Stack Smart air fryer as a promotion for my honest opinion of the product. This is a beast of a machine! The Ninja Double Stack Smart Air Fryer does everything an oven does except better with more options. There's 6 settings including a dehydrator to make homemade fruit roll ups and full meals. The food is so much better than from a greasy fr...
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lindseya41_8328
This reviewer received a free product or coupon in exchange for an unbiased review of the product
Reviewed at:
Ninja
Posted Mar 12, 2025
Great Air Fryer!
This air fryer is awesome! I love how it can hold multiple foods at once at a high volume. It’s pretty quiet too when running. Highly recommend! Would buy if I didn’t have.
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jessical657_1841
This reviewer received a free product or coupon in exchange for an unbiased review of the product
Reviewed at:
Ninja
Posted Mar 1, 2025
Space and time saver!
The Ninja Doublestack is the perfect space and time saver! From an easy lunch of nuggets and fries to extra juicy pork tenderloin medallions,baby broccoli and roasted potatoes! We have had so much fun using this at least 4 times a week in our house. The recipes are literally limitless. And it’s LARGE so you can cook the whole meal. The controls are modern and the temper...
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Jose
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Ninja
Posted Feb 23, 2025
Excellent
Excellent excellent excellent excellent excellent.
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zainaba102_4044
This reviewer received a free product or coupon in exchange for an unbiased review of the product
Reviewed at:
Ninja
Posted Jan 31, 2025
Love using it for everyday cooking
The best thing you can do to your kitchen if you cook. Saves your time so much with double stack system. The technology is amazing. Even have a system to make your food crispier. I love the sleek design and size it fits with less space. Love using it for regular meals.
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Ninja Fan
Reviewed at:
Ninja
Posted Jan 30, 2025
In Love
OMG! I love this air fryer I mean, I love all the ninja products but this air fryer is the best. I reccomend it fully.
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freebie01_3827
This reviewer received a free product or coupon in exchange for an unbiased review of the product
Reviewed at:
Ninja
Posted Jan 23, 2025
The best air fryer
The Ninja DoubleStack XL Air Fryer help you cook twice as much food in nearly half the space with Ninja's innovative double-stacked baskets, allowing you to air fry, broil, roast, bake, reheat, or dehydrate two different meals at the same time. It has a smart thermometer, which lets you select precise temperature ranges from rare to well-done at the touch of a button.
I...
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raysat3_7854
This reviewer received a free product or coupon in exchange for an unbiased review of the product
Reviewed at:
Ninja
Posted Jan 19, 2025
Versatility
I received this product for free in exchange for my honest opinion, and I have to say—it has way more pros than cons!
First off, I love that even though it’s XL, it takes up way less space than others of its size. It’s tall but not wide—perfect for smaller kitchens!
Another key feature for me is the foot pedals, which allow heat to escape and help protect your counter...
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Luke34
Reviewed at:
Ninja
Posted Jan 16, 2025
Great product
I got this for Christmas and I love it. My kid loves to air fryer food and with the two baskets he can make multiple meals or we can use it at the same time. The dehydrator works very well too. I made some onion powder. Very quiet I forget it’s even running.
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patriciaq16_9900
This reviewer received a free product or coupon in exchange for an unbiased review of the product
Reviewed at:
Ninja
Posted Jan 15, 2025
Versatile, amazing!
Amazing product!! I was so excited to know that I was going to try it and it has been an amazing addition to my kitchen! I love how well it cooks and how quickly you have an attractive meal! It is also super easy to clean and use so, all in all, very happy with this !
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CNMD
Reviewed at:
Ninja
Posted Jan 14, 2025
I'm very pleased I bought this air fryer.
So far my family (4 adultish type people) have only used this for the air fryer feature.
I (parent 1) very much like the space saving feature.
I like that it's intuitive to use.
I love that more than one person can make food at the same time.
I am looking forward to trying out a few recipes for vegetables - but we're not likely to ever use the air fryer to cook a chicke...
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Reereed
Reviewed at:
Ninja
Posted Jan 13, 2025
More counter space
I’ve had several different brands of air friers some of which were Ninja. This is by far my favorite. It takes up way less space on my counter. I can cook several different foods at the same time. If the top & bottom drawer are the same, there is a button you press after you set 1 and it will set 2 for you. Cooks great.
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shanacym_4318
This reviewer received a free product or coupon in exchange for an unbiased review of the product
Reviewed at:
Ninja
Posted Jan 13, 2025
This is something I would recommend to family
It’s very easy to clean. I thought it would be a little bit bigger than it was the noise level. I gave it a five it cooks perfectly and it’s easy to use. It doesn’t take up a lot of energy.
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YukonGator
Reviewed at:
Ninja
Posted Jan 10, 2025
Not Worth It
Terribly disappointed. Seems to take twice as long to cook food compared to my single Ninja. The bottom drawer is exceedingly noisy in use.
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mamastock55_2002
This reviewer received a free product or coupon in exchange for an unbiased review of the product
Reviewed at:
Ninja
Posted Jan 10, 2025
Amazing air fryer that is multi purpose!
Ninja DoubleStack XL 10 QT 2 Basket Air Fryer is an amazing appliance and is a great addition to my kitchen! This 2 basket air fryer not only air fries but it can air broil, roast, bake, reheat & dehydrates and cook 4 different foods at one time. Each basket has a crisper plate plus a metal rack to separate foods. It has smart finish technology so foods can finish at th...
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callam2_9808
This reviewer received a free product or coupon in exchange for an unbiased review of the product
Reviewed at:
Ninja
Posted Jan 6, 2025
Large cooking capacity and small footprint!
This is the perfect combination of small footprint but larger capacity! I was so impressed at how easy it was to use and how much can be cooked at once. Each chamber can even have its own settings if you are cooking multiple types of food. Clean up was a breeze! The trays easily came out and were able to be fully cleaned with a quick rinse. The noise level is low compar...
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Kwilson55
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Posted Jan 1, 2025
Best of the best
I love this air fryer. It’s a bit loud but doesn’t bother me
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sammyb12_90
This reviewer received a free product or coupon in exchange for an unbiased review of the product
Reviewed at:
Ninja
Posted Jan 1, 2025
review
it’s amazing how you can do 4 different items at one time, it’s super easy to use, and several different options for temp time, different types of air fry
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