Ninja DoubleStack XL 10qt, 6-in-1, 2-Basket Air Fryer, Space Saving Design SL401: Ninja Foodi, Dishwasher-Safe Parts

I was so excited to buy this… i am terribly disappointed. It takes forever to cook anything, the holes for venting in the back of the basket make it a mess! Crumbs, oil, and juice fly out the back… truly that’s enough to hate it but there’s more… if you leave a basket open or have to open it to take food out it completely kills the heat in the other basket… the space you save on your counter is taken by how far you have to place things to avoid the heat coming out the side instead of the back. Wish I could return or exchange! Only was offered a small discount on a different one.

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 becomes useless, and you’re stuck with a pricey air fryer that no longer does what it promised. Other Ninja products offer replacement thermometers, so it’s baffling that this one doesn’t. I reached out to support but there’s currently no solution. This is really disappointing and something buyers should know in advance. The product works fine otherwise, but without the thermometer, it loses one of its core selling points. At this price, that shouldn’t happen.

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 received it I noticed that it takes longer for stuff to cook in it and things don't really get crispy. I like my chicken wings a little bit on the crispy side when it comes to the skin and I can't get them like that with this. It takes me twice as long to cook items in it that I would normally cook in another air fryer in 5 to 6 minutes. When you pull the baskets out The machine keeps running you have to actually pause it which was not something I had to do with my previous air fryer. When I just want to heat things up it takes even longer then what it should. I think the idea of this is really great but having both baskets connected is not fun as I was wanting to do broiling to crisp up my wings a little bit and I can only broil in one and not both of them at the same time. If you're one of those people that love to make the mac and cheese in your air fryer you cannot do it in this one. I did find them easy to clean which was great All the food comes right off when you put the things in the sink and wash them. But this is a two-part system that runs together and it just doesn't cook the way a regular air fryer does that doesn't share the same cooking elements. I'm an avid Ninja user probably 90% of the appliances in my house are from Ninja all the way from my air fryer to the Ninja Swirl we just bought. But this one just doesn't cut it for me, I wish I could return it but I believe I've had it too long at this point.

[This review was collected as part of a promotion.] 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 frying pan and cleans up very easy! I recommend this product from a single person all the way to a family. I tried to attach photos of the food I cooked but they would not upload.

[This review was collected as part of a promotion.] 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.

[This review was collected as part of a promotion.] 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 temperature control allows you to cook that meat and veggies at the same time. There is actually the option to sync the top and bottom to cook at different times because we know a pork tenderloin or chicken breast cook time is different from veggies and potato’s. We love it!! 19/10

Excellent excellent excellent excellent excellent.

[This review was collected as part of a promotion.] 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.

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.

[This review was collected as part of a promotion.] 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. It is easy to clean because the crisper plate and basket are dishwasher-safe but I clean it by hand. My family and I love it. I use it almost daily and I'm so happy with it. From chicken wings to crispy vegetables, this air fryer is the best one that I have used.

[This review was collected as part of a promotion.] 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 countertop. Plus, you save time since there’s no need to preheat. You can cook four different foods at once, two in each basket. And the best part? Each meal can have different cooking times and settings, but they’ll all finish at the same time—without anything getting overcooked! It’s super easy to clean, and honestly, the only con I’ve found so far is that, despite being XL, the baskets could be a bit bigger.

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.

[This review was collected as part of a promotion.] 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 !

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 chicken.

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.

[This review was collected as part of a promotion.] 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.

This is a game changer!!!! So much room on your counter top! Plenty of room to cook 4 different kinds of food

You can make 2- different items and two different heat settings all with one device

Terribly disappointed. Seems to take twice as long to cook food compared to my single Ninja. The bottom drawer is exceedingly noisy in use.

[This review was collected as part of a promotion.] 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 the same time. It is like having 2 air fryers all in one. It does sit higher than most but it can cook way more than any other fryer. Each basket holds is 5 quarts of food. Everything is removable for easy cleaning as well. This air fryer is a great appliance for anyone and it is very easy to use and also has a nice digital display and settings are a breeze to control. It does make some noise but nothing to complain about. I highly recommend the Ninja DoubleStack Air Fryer for all your healthy cooking and more needs!