Ninja - DoubleStack 10 QT XL SL400/401/451
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Reddit Reviews:
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Based on 1 year's data from Jan 28, 2026 How it works
Liked most:
137
30
"It's MUCH easier to clean non stick surfaces (1 minute after each use). ... Takes me 1 minute to clean my Cosori with a nylon brush and Dawn."
"Clean up is a snap all it takes is a little bit of your dish detergent I use Dawn and three tablespoons of baking soda made into a small little paste you cover the inside you cover the. Inside in the rack with it you wait 15 minutes rinse it well with warm water paper towel dry it and it's done."
"both baskets go in the dishwasher, which makes cleanup way easier"
72
1
"I have not used my “basket” style air fryer or my full sized oven since we bought this. Well, aside from Thanksgiving to cook the turkey."
"FWIW this is one of the best things I’ve ever bought for my kitchen - only use the big oven for large scale baking these days."
"Size is pretty good too, can’t remember the last time I had to turn on my large oven."
66
19
"and I absolutely love being able to cook two different things and match their cook time."
"The dual baskets let me cook two things at once (like chicken wings in one and fries in the other) with different settings, and they finish at the same time thanks to the “Smart Finish” tech."
"You don’t have to figure out timing with this one you can set one side for the temperature and the time and set the other side for a different temperature and time. Then you hit the start button and the oven pauses cooking for the one with a shorter cook time so they both finish at the same time. ... This is an awesome upgrade from the last one I had when I had to try to figure out the timing. ... But you don’t have to do anything except set your oven. Set one side 350 for 60 minutes. Set the other side 375 for 40 minutes. Hit the button that says smart match. Then hit the button that says start One side of the oven is paused for 20 minutes, which makes them finish at the correct temperature and time. In other words, one of them cooks for 60 minutes at 350 and the other one cooks at 40 minutes for 375. ... It doesn’t take just as long if one takes 10 minutes at 350 and the other one takes 5 minutes at 350. You hit start and one side doesn’t start until five minutes later than the other one. If you have one that is 350 for 10 minutes and the other one is 375 for five minutes. One starts cooking at 350 for five minutes and then the other one starts cooking at 375. Both of them end up being finished at the same time. ... Mine is 1690 W in the US. This is mine and you can program two different products and two different drawers with two different cook times and temps to finish at the same time. ... This oven does it automatically. You set one side for time and temperature and the other side for another time and temperature and you hit the start button. The one with the lower cook time is paused and starts automatically to make them finish cooking at the same time. ... it has one drawer with two sections that you can cook two different foods at different times and they come out finished at the same time."
539
149
"I think its hands down the best all around option right now, especially once you hook it up to the water line and drain, i run it daily in our house and we got rid of our cleaning help because of it."
"i have had the BlackVue DR970x Plus which proved bulletproof during the hottest Summer on record last year. my credit cards and ID’s all had to be replaced because they melted and warped, but the BlackVue keeps running without issues."
"The X40 is so far ahead in the object avoidance realm that it's not even a contest. ... I have my Dreame X40 running at midnight every day and never have to worry about it getting stuck on something or caught on something because it's object avoidance works so well, even in the dark and on all surfaces. ... It stays clear of cat toys, cords, socks, paper towels and all sorts of random household junk. ... the fact that I can run the Dreame daily will keep my house cleaner."
7
0
"This is exactly why I just switched to getting the double stack.. ... I don't have a lot of countertop space in my NYC apartment but this one fits nicely"
"As this has same capacity but takes up less space on counter top, than the side by side model."
"I’m tired of how much space the side by side takes up on the counter"
Disliked most:
6
18
"honestly I hate it. ... Each basket is too small. ... No matter what you get, get a larger cooking area."
"I have the kind that has two smaller baskets and I'm so unimpressed with it. ... I very much regret not getting the toaster oven kind. I opted for this stupid dual basket kind. This thing is almost useless. ... I have the ninja dual basket air fryer and I'm so not impressed with it. ... What kind of air fryer do you have? Mine is a dual basket and I find it's literally the opposite of what you said lol ... I wonder if this has more to do with the model that people get. Mine is a dual basket. I regret not getting the toaster oven kind. ... I'm extremely unimpressed with the one I chose, a dual basket air fryer. So many feelings about it haha. ... Don't get a dual one with two small baskets."
"Baskets are small ... the quantity for those two things is small"
3
15
"My biggest complaint is that it takes forever when using both zones. ... It brags that you don’t have to batch cook, but at least with batch cooking I’d have something hot on the table while the second half cooks."
"as soon as we put both baskets to use it was sooooo slow to cook. ... Basically double the cooking time. ... when switching to two it takes absolutely ages."
"When I first got it I was excited to throw like frozen fries in one side and nuggets in the other, but then when I used my Normal settings neither was even close to done. I don’t use both at the same time ever anymore. ... Tried later adding time and found it really cumbersome to get right. It just doesn’t get nearly as hot when splitting between both baskets ... If you tell it to have 375 in one side and 350 in the other they’ll actually be about 335 and 310. It can’t output enough heat. ... Maybe mine is defective (and was out of the box) but it absolutely does not reach the desired temperature if I use both."
3
14
"burns the food and cooks unevenly ... absolute waste of money"
"Whenever you cook with both baskets it just doesn't have enough power for that so it cooks way worse ... so you end up just always using only 1 basket."
"The mistake I made when new was using silicone trays. Thought they save effort on cleaning. Chicken bone in & skin on thighs raw near the bone after recommended cooking time. Took lots of putting back & more cooking. Think eventually it nearer an hour to cook instead of 20 minutes. ... After a few days of such disasters. I realised it’s due to the silicone trays blocking the back Vent holes at the drawer backs. Also blocking air that should come up through the Crisper Plates. Same would have occurred with Parchment Liners. I did try collapsing the Silicone Trays. But they rose up during cooking, so still blocking the air Vents on the Drawers backs."
6
3
"I don't trust them anymore with their built in capacitors that died."
"I was running an old Asus RT-AC68U with the Merlin firmware previously and it was starting to be unstable and needed frequent reboots"
"Asus is not immune, the RT-AC86U was notorious for getting too hot, cracking the BGA solder, and dying an early death."
2
1
"Does the beeping not wreck your head? ... And the dogs too."
050198 1.0We have this model. Can confirm it cooks unevenly. You can counteract it if you’re mindful to turn the food through the cooking process, but it can be a pain
ajguk 1.0It's not the best. Definite differences in heat levels between the front and back of the drawers so you have to move things round more than you ah pull. Zero preheat time though and it's got a small footprint for so much capacity.
cooket89 1.0This model of ninja is inherently flawed as an airfyer and the heating element is at the back. Reviews show it can lead to uneven cooking. If you have the space opt for the side-by-side ninja dual basket one, it goes up to 240C as well.
This model of ninja is inherently flawed as an airfyer and the heating element is at the back. Reviews show it can lead to uneven cooking. If you have the space opt for the side-by-side ninja dual basket one, it goes up to 240C as well.
Fyonella 1.0Same. I have this model and cannot think of a single criticism of it.
I’ve had no problems with it. You go have to shake the basket or rotate larger items but that’s true of air fryers in general.
Thx1182 1.0I have that Ninja model and I find it great. It is very easy to clean and is simple to use. Great to be able to cook two different things at once with different times and temps and have them done at the same time. (Sneaky edit for typos)
Boing78 0.8Wir sind mit ner günstigen vom Aldi (glaube so 70€) angefangen um zu schauen ob es was für uns ist. Mittlerweile haben wir (auch zu Zweit) ne Doppelstock als XL von Ninja. Mit zwei Schubladen kann man gleichzeitig zwei verschiedene Sachen wie z.B. Hänchenschenkel und Gemüsebeilage machen. Ich würde immer darauf achten, dass man die Programme so einstellen kann, dassselbst bei unterschiedlichen Garzeiten beides gleichzeitig fertig ist. Und nie wieder zu klein, die Heißluft muss sich vernünftig verteilen können, sonst ist das Ergebnis schnell entäuschend.
Wolfram414 0.5Are you by any chance american? This airfryer uses 2300W when using both drawers. Most american plugs cant do that, so americans have this problem of longer time when using both baskets, but dont blame the airfryer
I might have been too fast, my model is the one slighly biggest than this. But mine uses 2470w according to the website.
Zippy_0 0.5Not quite the same, but I have switched from a Ninja AG651 to an AF451. One downside is definitely that I can't fit a large casserolle in ther anymore, but that's the only downside as well. The drawer-style is way quieter. Allows me to make crispy stuff alongside veggies which before just didn't crisp up properly. It does not require preheating. I have less space width-wise, but way more space to the top which makes bigger pieces of meat possible (for example one whole chicken, which before only worked spatchcocked). If I only have use one drawer the power-consumption is obviously less. Cleaning is way easier. Also the thermal probe is way better than my previous one.
Aggressive-System192 0.4I have ninja dual stack and it's a life saver. I can cook 2 things at once and not having to be constantly putting things in the oven and checking on them. It has the functions to match the cooking time for things to finish at the same time and you can have 2 layers in the same basket. It cooks much faster than the oven does. It ended up being smaller than I expected, but fits more than what I expected. Bonus function is not heating up the whole house just for a meal, like the oven does. I love that I'm not a sweaty and smelling like a pig after making dinner. I put my air frier close to the kitchen fan and turn it on. I should have bought it sooner. PS: watch out the air frier exhaust. Mine melted a cheap toaster that's encased in plastic.
aquatic_zone 0.4Can’t say I’ve tried any others but I’ve never had any issues with my Ninja. I have the one that’s stacked instead of side by side to save counter space and I love it. Only complaint is the cord is a bit short.
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