Customer Ratings & Reviews

High quailty air fryer, 100% recommend. Everyone in my family loves this!

It’s complicated, but once you learn it, it makes sense! Maybe it was just me, but this unit felt like there were a ton of rules you had to know before using it. It made the entire experience feel convoluted at first, but I think I was making mountains out of mole hills. Because once I got it all figured out, it is actually quite intuitive. One example: nothing is dishwasher safe minus the wire rack, everything else has to be hand washed. So the rule in our family is NOTHING goes in the dishwasher in regards to this Ninja. The top oven can only be used for some things, and the sheet pan can rest on top of the wire rack, but on the bottom oven has two slots, some things go into one slot while others do not. The combination of the two can be tricky as well. But the rule of thumb is the top is a toaster, the bottom is an airfryer. This little distinction made it far more simple. The other thing is you can’t use low smoke point oils, such as olive oil or butter. So most if not all of your meals needs veggie oil, canola, etc. Also when using both ovens at the same time, you have to estimate additional time, Ninja recommends a couple minutes or so additional cook time. So if your recipe requires 20 mins to cook, try 22 instead. The other complication was I bought a whole chicken, but it ended up being too big for the unit. Turns out the unit can only accept 5 pound chickens or lower with another page in the manual recommending 4 to 4.5 pounds. Needless to say, I had to use my conventional oven for the chicken instead of the Ninja. But that didn’t stop me, I also bought a salmon and that cooked gloriously! More on that later. Once I got it figured out, the buttons on the front are pretty self explanatory. There is a “Top” and “Bottom” button, which just lets you the user know what is happening on the display for that particular space. Or turns on the unit enabling that particular spot. The “Smart Finish” button is a little tricky, but it has a couple features in that one button. You can use the built in meat thermometer to have it stop cooking when it reaches the desired temp! Remember when I mentioned my super delicious salmon? Well I used the leave-in auto detect feature and it stopped cooking as soon as the temp got perfect! So good! I loved it. At the same time, I had potatoes and veggies roasting on the top! The family loved it and it was super easy to do. The other thing I noticed is the veggies didn’t taste like fish, so I think Ninja did a good job with aroma control. The biggest thing I don’t like about this unit is the toaster! The settings variations on toast is not real, I had it set to 3 and 2 pieces of bread and my toast was essentially burnt! I turned it to 1 and 1, and both my pieces were fine. But if you want a lightly toasted piece of bread, it’s impossible to do without watching the bread. For example my toddler likes very lightly warmed poptarts, and I can’t do that with this unit using the toast setting. I can however work around the issue using the “Keep Warm” setting. So far I’ve made chicken tenders, chicken breast, salmon, veggies, nachos, fries, poptarts, toast, bagels, and mozzarella sticks. I plan on making so much more with this thing, including another attempt at a whole chicken. All in all, I love this and I’m so happy to have it added into our kitchen!

SUMMARY: The Ninja DoubleStack XL Countertop Oven and Air Fryer is a multi-faceted oven that makes you feel like a professional chef when you use it. It not only looks good in your kitchen, but it’s powerful enough that you may find yourself using it more than your primary oven. It’s large enough to cook multiple meals at once and may be particularly useful during the holiday season, which is prime cooking time for most families. DESIGN & SPECIFICATIONS: The Ninja DoubleStack XL comes in stainless steel, which is always a classy look. It looks very sophisticated, professional and luxe for a countertop oven. It’s 13.26 inches tall, 18.6 inches wide, and it weighs 31.26 pounds. It feels sturdy and well crafted. Depending on which version of the Ninja DoubleStack XL you have, the countertop oven comes with different accessories. I have the version “DCT650,” so mine comes with two wire racks, two sheet pans, one crumb tray, one air basket, and a pro cook thermometer. By comparison, the “DCT600” version comes with a roast tray instead of the thermometer. It is recommended by Ninja to hand wash all the accessories in warm soapy water, then let air dry. This is to keep the finishes on each item from degrading. Ninja offers a variety of accessories on their website should you need to buy more. It is recommended that you only use Ninja approved cooking accessories with the Ninja DoubleStack XL. A big feature of the Ninja DoubleStack XL, as the name implies, is that you can cook multiple meals at once due to being able to use the two ovens independently of each other. Ninja calls it “DualZone technology.” This allows you to cook different meals but have them finish at the same time as a way of minimizing back-to-back cooking and lessens time in the kitchen. You can cook two meals in different ways but still have them finish at the same time. All you have to do is make sure you keep in mind how much time each meal needs and cook accordingly; start the meal that needs slightly more time first in the bottom oven (chicken wings, beef roast, whole chicken), then add the second meal to the top oven that needs less time (veggies, fries), and let the oven take care of the rest. There is a manual included that explains this in detail, but Ninja also has videos you can watch to better explain the technology as well as shows the DualZone technology in use. PROS: The Ninja DoubleStack XL comes with what they call a “Flex door.” This is what allows you to access just the toaster oven part of the oven. It’s a cool way to separate the two ovens. This comes in handy when you are cooking in both ovens at the same time and don’t want to disturb whatever is cooking in the bottom oven. Speaking of cooking two things at once, a big pro of this oven is that the smells won’t crossover. Ninja uses special technology they call “flavorseal technology” to prevent smells of different types of food from crossing between ovens, so your flavor profiles will stay separate. This means if you want to bake chocolate chip cookies or cinnamon rolls in the top oven while roasting lemon garlic butter chicken in the bottom oven, you can without worrying about your desserts smelling like your garlic chicken. Another pro is how fast the Ninja DoubleStack XL works. It preheats quickly and finishes meals quickly. I also like how I don’t have to think too much to use it. Let me explain: I like my bagels and bread on the darker side, and the toaster function finished my toast in less than 4 minutes (I think it’s 3:38 to be more exact). The Ninja DoubleStack XL calculated how much time I needed based on my desired darkness (or shade), so I don’t have to guess how much time I need to toast my bread for it to be perfect or set any cooking times on my own. Once it finishes, it turns the oven off for me. You will hear the fan lingering for a few minutes, but that is it. I like that the Ninja DoubleStack XL comes with a recipe book; specifically, I like that it tells you which oven to cook what type of dish in, what settings to use, and what cooking accessories to use to ensure your meal comes out a success. It’s proper meals too, such as “whole-roasted BBQ chicken with mac & cheese (the mac & cheese goes in the top, and the chicken gets cooked at the bottom), roasted turkey breast with veggies (the turkey is cooked at the bottom, veggies cook up top), and eggplant parmesan with garlic bread (you probably already guessed that the eggplant parmesan cooks at the bottom and the garlic bread cooks up top). The recipe book gives you a better idea how to properly use the Ninja DoubleStack XL to its full potential, and it makes it seem less overwhelming or less intimidating to cook in. Lastly, at least when using the device in air frying mode, the Ninja DoubleStack XL is only moderately noisy, which is important to me. It cooks much quieter on the toasting mode than it does on the air frying mode. It also doesn’t have that constant ticking sound that most standard toaster ovens have that goes on the entire the device is in use. CONS: This thing is HUGE! Unless you do not have any other countertop kitchen appliances, or you purchase a special portable countertop/island to sit it on to add counter space, I do not recommend this appliance for people that have small kitchens or limited counter space. I live in an old condo that is an open floor plan concept, and I have a small kitchen. This takes up a large chunk of counter space, but I am okay with it since I plan to use this more than my full-size oven. I do not recommend this for someone that only wants an air fryer or that only wants a toaster. The size (and price) wouldn’t justify purchasing this only for making toasts and bagels. I strongly recommend measuring the area you intend to put this before ordering, or maybe going to see this in store first and measuring the item itself and your kitchen space. The Ninja DoubleStack XL is also very, very heavy. I live alone and live in a second-level condo, so I had to push/slide this thing up the stairs. If you are elderly or a single woman like me, you might need help getting this into your kitchen. Even on the box it arrived in, it suggests using two people to carry it. This is another reason I suggest checking this item out in person. Just looking at it online and in videos didn’t help me; I mistakenly thought this oven was closer to a traditional toaster oven size. If you’re like me and have zero concept of measurements and dimensions and are a visual person, please check it out in store. Part of the reason this oven is so large is it’s geared towards family meal cooking; it’s for large family meals. If you’re single like me and no someone who often cooks for others, you might not need this specific countertop oven. The wire racks and sheet pans are not dishwasher safe. While I understand cleaning them by hand will protect them from being damaged, if you hate doing dishes like me, you may find this step cumbersome. This is probably just irritating to me (keep in mind that I am a non-cooker) but I hate that I can’t use butter or olive oil as a base in this for risk of increasing smoke emitting from the oven. Ninja recommends using avocado oil, canola oil, refined coconut oil, vegetable oil, or grapeseed oil. Granted, these are all easily accessible and I have a few of these of these in my cupboard right now. Still, I prefer cooking a lot with butter, so this will be a hard habit to break. CONCLUSION: A single person that is not a heavy cooker may not use the Ninja DoubleStack XL to its full potential. I recommend it for a family of four or more. I also recommend it for people like me who eat a lot of toasted foods but are impatient and want to cook their food fast. I also recommend it for single people who have old full-sized ovens that probably need replacing. Using this countertop oven in place of an old full-sized oven will not only be safer, but it will also be more energy-efficient too.

I've been using the Ninja Double Stack XL Countertop Oven & Air Fryer for a few days now, and so far I am impressed by what I have seen so far. The dual-level cooking system is truly amazing and a time saver, allowing me to prepare multiple dishes at once without having to juggle between different appliances. For instance, I can air fry chicken wings on one level while baking potatoes on the other, saving both time and effort. The Pro Cook System is incredibly reliable, taking the guesswork out of cooking and ensuring perfectly cooked meals every time. Whether I'm air frying, baking, roasting, or grilling, the results are consistently exceptional. The food comes out crispy, juicy, and full of flavor. One of my favorite features is its user-friendliness. The controls are intuitive and easy to use, even for those with little cooking experience. The dual oven also comes with a magnetically attachable temperature probe, so its always there. The flexdoor feature creates two independent ovens, so you can access just the top oven for quick snacks and meals, or open the full door to use both ovens. Additionally, its sleek design and modern aesthetic make it a stylish addition to any kitchen. If you're in the market for a powerful, multifunctional appliance that can handle a variety of cooking tasks, I highly recommend the Ninja Double Stack XL. It's a fantastic investment for anyone looking to make meal prep easier, faster and more enjoyable.

This is a great multipurpose air fryer/oven/toaster. It cooks quickly and both layers can be operated independently which opens up a lot of flexibility for cooking larger meals. It’s a lot bigger than your standard toaster oven, but the additional functionality more than makes up for that large size. The package includes the oven, 2 sheet pans, 2 wire racks, an air fry basket, 1 crumb tray, and an integrated thermometer. This oven is quite large compared to a conventional toaster oven, but I was able to fit it under my kitchen cabinets in the place of my toaster without having to move too much around. The power cable is a little over 3 feet long. The cook functions are navigated via a single knob that rotates and clicks and then additional functions are selected related to time/temp or whatever applies on that particular mode on 2 additional buttons. You can select the top or bottom ovens and set them up independently or simultaneously. The Smart Finish option also lets you set up the cooking so that both ovens finish at the same time. The menus and navigation seemed a little complex at first, but I was pretty dialed in on it after a couple of minutes and it felt intuitive after that. The top oven is mostly a conventional toaster oven and has variations on bake and toast functions. The baking is not as fast as the bottom oven, but it still works well and preheats quickly. As a toaster it’s fantastic, especially for bagels. The bottom oven is the larger of the two and has all the air fry functionality. As an air fryer it works great - even better than the Ninja Speedi we have been using. It also works great as a convection oven. We’ve made pizza, brownies, vegetables, and various frozen appetizers on it and they’ve all turned out great. In the week or we’ve had it and with daily use it’s stayed pretty clean. According to the manual, the sheet pans are hand wash only and hand washing is recommended for the air fry basket. I will say the sheet pans have been through my dishwasher a few times now before I found out they were not dishwasher safe and they seemed to have held up well, but the manual warns that the finish can degrade in the dishwasher, so hand wash it is from here on out. Some miscellaneous items: - I have not had a chance to try any of the thermometer functionality yet, but I love that it’s built-in and that the oven lets you cook meat to specific ‘doneness’ levels. - As the oven ends its cooking cycle, the lights will gently turn on, which is a nice touch. - The oven includes a recipe book with 15 different recipes ideas made specifically to utilize both of the ovens. - With this oven the fans are on the side and not the back, so it’s something to keep in mind in terms of how you are turning your food if that's something you need to do. Overall I’m really happy with this oven. The 2-layer oven system combined with our conventional oven is going to make larger meals a lot simpler to handle. The amount of versatility you get from this oven is great and it replaces both my toaster and my air fryer, so it’s not contributing to my kitchen gadget glut. And being more compact it works so much better in situations where you don’t need a full size oven, which for my household of 2 is most of the time. I’d definitely recommend it.

I am very happy with this Ninja Double Stack XL Countertop Oven and Fryer. It is two ovens stacked on top of each other. The model number is DCT651, it means it comes with the Pro Cook System. The finish is gorgeous, the display goes totally invisible when power off. The control is very simple, intuitive and smart. Example, to use the top oven, press the top button and use the dial to select the function. Use the other two buttons to adjust temperature and time and press the dial to start or stop the cooking. If you choose toast, the temperature becomes shade of the bread setting and time becomes how many slides of bread. The oven is of a good size for me but could be a little big for some. However, it can still fit under my kitchen cabinet. The door is designed to open flat with the handle going below the counter top. It comes with two sheet pans, two wire racks, one air fry basket, crumb tray, recipe book and a guide. The crumb tray is removable and is for the top oven only. I wish it comes with two because I would like to have a crumb tray at the bottom oven too. Air fry basket can be placed at the lower slot or upper slot of the bottom oven. You can open only the top door or open door for top and bottom oven, you cannot open just the bottom oven because it is not a two doors oven. This is a twelve in one oven and can bake, broil, reheat, keep warm, toast, cook bagel, air fry, convection bake, cook pizza, air roast, cook whole roast, and dehydrate. To be used as a toaster, it can toast up to 6 slices of bread. I toasted some bread and they came out well, don't have to stay there and keep watching to prevent it from over browning. I also cooked taquito using the air fryer and they came out crispy on the outside and soft in the inside, perfect for me. You can set different settings, times and temperatures for each oven, so the two compartments truly are separate cooking areas. It says cooking goes quicker than other oven is and it is true, even pre heating is super quick. The handle is well designed, other oven might burn your hand when you open the door if you hold it the wrong way but this oven, the top edge of the door is tapered to avoid your hand. The guide and the pictures on box seem to imply roast tray is included but when I read it carefully, it is a separate purchase. Bummer.

The Ninja Double Stack XL Countertop looks huge on arrival. when i first got it, i thought it'd be way too big to fit on my counter top and much too bulky to replace my current toaster oven. As can be seen in the pictures, despite looking quite different in size, it isn't much different. width was pretty much the same, all i lost was height, but I'm not putting stuff on top anyways (and you wouldn't want to anyways because of how hot the top gets) This air fryer/oven combo is pretty sweet. it looks really sleek and you can either open just top the top door when using the top or both if you are needing the bottom section. the buttons have a nice feel to them that don't feel cheap. Despite having rubber feet, it slides around quite a bit on my counter top. i ended up getting a mat that also helps protect the countertop from heat in addition to preventing slippage. Because the door is so sturdy, without the mat, when i try to pull down the door to open the oven, it usually just pulls the oven forward. User interface is pretty straight forward but a bit of a curve. you press top or bottom to turn the machine on and then can just twist the dial to what setting you want and push. from there you can tweak temp and time by selecting the button then using the dial to adjust. press the dial to confirm choice. Temp / Time also doubles as toast darkness and number of slices. these will take some trial and error to get right for how you like your toast. default was 3 shade 4 slices. i had to go down to shade 2, 2 slices, even when using 4 slices because it was a little too darkened for my liking. would suggest going just lower than what you think to test so you don't waste food its great having two areas to cook to prevent letting one dish get cold while the other is cooking. I like that i can make sure they end at the same for convenience. I tested this out with nuggets and pizza bagels. nuggets needed about 4 more minutes and they both came out perfectly. The air fryer basket is quite large, i was able to comfortably fit about 24 dinosaur nuggets and because it was using air fryer mode instead of oven, there's no need to flip. The two baking trays are about 11x11 and also fit quite a large amount. I was able to put on 24 pizza bagels. i was able to make a tray of fresh fries using 4 potatoes cut to 1/4" thickness and they all spread nicely across the entire basket. you can fit a lot of food in this oven. I ended up getting a tray liner for the black trays to make cleanup easier. in the bottom portion you can put that under the air fryer basket to catch any crumbs/drippings. When your food is done and its turned off, the screen will say "HOT" which is nice reminder as you are cleaning up and whatnot so you can be mindful not to touch. The sides and top on the outside get surprisingly hot during cooking and stay hot for quite a long time after you're all done. My existing toaster oven doesn't stay that hot for that long. not sure if all air fryer's take a long time to cool down, so this could be normal. the poor gripping feet and excessive heat are what cost a star but that could just be me and my kitchen. just something to be mindful of. Regardless, this is an amazingly capable oven and fryer that has a high capacity for family meals.

This small oven is great. It has a dual action that can cook two different foods at different temperatures and times. The setup is easy and the features are very simple to follow. It also features a release button for the top portion of the small oven. This helps in case you need to access the top portion of the oven while the bottom is in use or not. According to the manufacturers suggestion, the top portion should be used for small items or to toast. The top of the oven has the options of cooking using several methods like Broil, toast, bagel, bake, reheat and just keep warm. The bottom of the oven has the option of Roasting, Air Roast, Air Fry, Convection Bake, Pizza, and Dehydrate. This oven design is great because it can keeps the temperature and smells apart from each other. That way your cookies wont have a salmon smell. The oven comes with a cooking basket, two level grills, two pans, and one crumb pan. It also comes with a external thermometer to help with monitoring thicker meats like steaks, chicken, pork and turkey. Overall this is a great addition to the kitchen. I've used it every day to cook a quick lunch and even make bacon.

I am writing this review for the Ninja Model DCT651 Double-Stack XL Countertop Oven and Air Fryer With Pro Cook System. Wow, what a mouthful! I have to be honest, when I saw that the Ninja had a folding door, I had to have it. It just looked so unbelievably cool to me. It is the first time I have ever owned an appliance with such a feature. And even now, it is still my favorite aspect of the appliance! When it arrived at my house and the delivery driver opened the back of his truck and started pulling out this huge box, I got a little nervous. Ok, so it wasn’t really huge, but it was pretty big, and I did get a little nervous. The driver had a bit of a time with it, but he finally managed to hand it to me. One thing for sure, it felt substantial. I got it into the house and set it down on the living room floor which is where I typically unpack everything. As I opened up the shipping box, I felt a sigh of relief when I observed how well packed and protected the Ninja was. This is the very first sign I look for when I get a product is how much attention and thought they invest in making sure it gets to where it’s going intact, undamaged, and ready to use. Ninja did great. While taking everything out of the box and looking at all the parts that came with, I began to wonder if they had made a mistake and sent me two different orders… there was a lot of stuff. Included with the oven was a Ninja Pro Cook thermometer with a handy magnetic storage holder, two sheet pans, two wire racks, and air fry basket and what they call a crumb tray. After completely unpacking everything, two things began to go through my mind… where was I going to store all the neat stuff that came with the Ninja, and where was I going to put the unit itself. I knew my old air fryer had to go, and I had already promised it to my neighbor, and another appliance was going to be moved to another counter. So, after getting that all done, I put my Ninja in its new home. Following the instructions, I washed everything first, plugged it in, and hit the power button. Now, it takes a bit to intimidate me, but there was a part of me that felt a little butterfly or two as I turned it on and saw all the controls and options light up. I was kind of figuring on a button or two for the top and a button or two for the bottom, but I saw a learning curve coming into play. I don’t know how they do it, but fully hidden in the brushed stainless steel are all these option lights. They only appear once the Ninja is turned on. It is truly brilliant how they managed to do this, and to make sure I just wasn’t seeing things, I turned it back off to see if I just didn’t notice it before. But sure enough, they were completely invisible. Magic! And speaking of lights, both the top and bottom sections have their own light. They’re not independent, meaning you hit the button and they both come on. They do emit a lot of light so viewing the progress of your cooking food is easy. When I mentioned a learning curve earlier, I wasn’t kidding. Ninja throws a lot into the Double-Stack oven. By reading through the Owner’s Guide before using it, you can get a really good understanding of how it works. First off, you choose whether you are going to use the top, the bottom, or both. This is done by pushing the appropriate flashing button at the beginning. (You have to choose one before you can start cooking anything). Then you choose either one of several presets, or you can choose your own personal settings, and then do you want to use the thermometer, what kind of finish do you want, etc. But like I said, going through the manual will give you a very good idea of what to do, and alleviate the learning curve I keep mentioning. The one thing I can’t stress enough is that the User’s Guide, Instruction Manual, and the included recipes will make using the Ninja super easy, and super fun. And so, after going through everything, I decided to start off with something fairly easy…a frozen pizza. I was actually excited about doing a pizza in the Ninja. I had just bought a brand of pizza I had never tried before, and wanted to see if the Ninja could handle it. Rather than choosing the preset pizza function, I chose to cook according to the package directions…400 degrees for 15 to 17 minutes. Anytime they give a cooking time range, I always opt for the middle. Ninja recommends always preheating. So, after preheating, I put the pizza in, set the temperature and the timer, and let her rip. During cooking I checked in a couple of times to make sure it wasn’t burning, and finally the beep! Now I promise I am not blowing smoke, but the pizza came out absolutely perfect. The crust was perfect, the toppings were cooked perfectly, it was one of the best store-bought pizzas I have ever eaten. It didn’t even compare to an oven-baked pizza. It was perfect! So what was I going to do next? I decided the next evening was going to be a roasted chicken. Having got my feet wet with the pizza, I was feeling a bit more sure of myself. The recipe in the recipe book used a roughly 4-lb whole chicken. So, on my way home from work the next day, I stopped by the store and found a 4-lb chicken. As I prepped it, I chose a very simple seasoning…salt, pepper and garlic powder with smoked paprika. Not only did I want to roast the chicken, I had my heart set on some garlic toast, and decided to use the Smart Finish function. As I thought about it, I knew I didn’t want to leave the garlic bread in the top oven the entire time, so I set the alarm on my watch, and when it got close to time for the Smart Finish to kick in, I took the bread out of the freezer and put it in the top when the beeper went off. In about 10 minutes everything was done and the beeper went off again. The results? I can’t say the chicken was the very best I have ever eaten, but it was done to perfection. My only complaint was about how I used too much salt. The garlic toast was perfect. I could go on and on about the other things I cooked…French fries, another pizza, and breakfast toast, but I think you get the idea that the Ninja is the perfect addition to my kitchen, and will be used A LOT! CONCLUSION The Ninja Model DCT651 Double-Stack XL Countertop Oven and Air Fryer With Pro Cook System is a keeper. It is solidly built with obviously high-quality materials. When opening and closing the door(s) there is a very solid feel to it with no tinny sounds, or wobbly hinges. The “flex” doors are a real game changer as well, keeping foods from absorbing flavors from each other. The seals are high quality and do their job well. The light is bright and illuminates the interior so that you can see everything. After familiarizing yourself with the User Manual and other literature, you will be able to jump right in and start working your magic. Now, it is a rather large appliance with a large footprint. I had to do a bit of rearranging on my counters, but it looks really good and matches my other countertop appliances. I suppose if I looked hard enough, I might be able to find something I don’t like about the Ninja, but I don’t really think so. And although my cooking experience with it has been limited, I have a feeling that this is going to be my go-to cooking appliance for a long, long time.

The Double Stack XL has a large selection of heating options and the versatility of two ovens to use, even at the same time. Design The Double Stack XL has a clean stainless steel look with nice, large windows to see in the two, distinct, ovens. The controls are all on the right side, split top and bottom for the top and bottom oven respectively. The top has one level to put things on, which makes sense due to the space. The bottom has two levels to put things on. The top oven has heating elements on the top and the bottom. The bottom oven has no visible heating elements, and I think relies on the air circulation with vents on the back and right side of the inside of the bottom oven. Both the top and the bottom ovens have a light in the back that illuminates the inside very well - there's a dedicated light button at the bottom right of the controls. It has a crumb tray for the top oven. There's no crumb tray for the bottom oven but that oven isn't for toasting and, because there are no heating elements in it, it's easy to wipe out if needed. The door splits in an interesting way to accommodate the top and bottom oven. If you just pull the handle, the top and bottom oven are then opened. If you press the button on the handle and then pull the handle, only the top oven opens. This works very well but it does mean that you cannot open the bottom oven without opening the top oven. Since food you would make on the top oven tend to take less time then food in the bottom oven, it's probably not a big problem. There is a "Smart Finish" button that makes both the top and bottom oven finish at the same time. I think that's a great feature to have and neat way to take advantage to two separate ovens in one small appliance! The display on the control doesn't even look like it's there until you turn it on and use it. Words and numbers appear over/through what looks like stainless steel. I'm not sure how they do that but it looks cool and is easy to read. If you were going to use it in direct sunlight I'm not sure how visible it would be, but I think it makes the Double Stack XL looks more clean. The heating elements in the top oven look like they are designed to distribute heat more evenly, but they also seem like they would be harder to clean over time. Controls and Display The buttons are very easy to read and press. You start with the "Top" or "Bottom" button to turn on the respective oven controls. There's a nice, large, dial at the bottom to select the cook mode. Press on the dial to select. Press a button for "Cook", ""Time", "Shade", or "Slices" and then use the same dial adjust cook time or temperature. As mentioned above, you can use the "Smart Finish" button to synchronize the top and bottom ovens so that they both finish at the same time. I really like the way the controls are easy to use and the way you don't even see the display until you turn it on but the display is easy to read when it's on. When you have an item in each oven you will see both cook times. You can also adjust temperature or time while things are already being cooked. As mentioned above, there is a dedicated light button at the bottom right of the controls which works very well to illuminate both the top and bottom ovens. I included a picture where I'm baking a frozen pizza in the top oven and air frying French Fries in the bottom oven. Features The following items are included: - 2 wire racks - 2 sheet pans - 1 air fry basket - 1 crumb tray - Temperature probe and holder The biggest features of this oven for me is somewhat obvious but important - the way that in a relatively small kitchen appliance you can heat two completely different things in two totally different ways at the same time, even using "Smart Finish" to end them at the same time, if you want. I listed the temperature probe and holder because I do love this! A holder is included that you wrap the probe around, and it's magnetic, so you can stick the holder on either the left or right side or the top, wherever it fits and is convenient. I like having accessories and places to store them. I have a picture of it on the side of my Double Stack XL. Baking, Toasting, Air Frying I've been very happy with the results of things I tested this toaster oven with. From baking cookies to air frying a frozen, deep-dish pizza, the Double Stack XL gives lots of great heating options and produces very good results. I dumped a whole bag of frozen French fries in the air fryer tray and made them in the bottom oven while making a thin, pepperoni, frozen pizza in the top oven. Even with them dumped in they were loose enough and the tray allowed for enough air flow that the fries got done very well. None were burnt and they got toasted nicely. A few here and there that were in clumps didn't get fried the same way but they weren't cold. Excellent results for the air fryer! I like having such a large air fry tray to spread things around in, that's what allowed so many fries to get done so well. They seemed to be done evenly too in the tray. I also tried making a thin crust frozen pizza in the bottom oven. That seemed to get done more in the back left and front right. It was good and heated through but it would have been good to turn it half way. I made the same kind of thin frozen pizza in the top oven (recommended in the manual for frozen pizza) and that heated very well, and a bit more evenly I think. I tried a think crust frozen pizza in the bottom oven and that was definitely done more in the back. Rotating it half way would have been a good idea. It got very hot through, even though I had it on one of the included trays and not directly on a rack. I had it on the second level, 350 degrees, for 32 minutes. The box said 350 degrees for 40 to 45 minutes. I think if I rotated it half way and did it for 30 minutes it would have been perfect. It was still really good! The cheese in the back was just dark. The first thing I made was a bagel. I used the "Bagel" mode and then got distracted. I didn't even watch and the default setting was "4", which was too long, and it started smoking and got mostly black. After that, I made another bagel with the "Bagel" setting but set it on "2" instead of the default "shade" setting of "4" and it was heated well. So think it's fine as a toaster but just be aware that the default setting, if you do not change it, may burn your toast or bagel. Pictures I've included four pictures. One showing a thin frozen pizza baking in the top oven while I'm air frying French fries on the bottom oven. One picture shows chocolate chip oatmeal cookies (fairly large ones) in the oven and another picture with the cookies when they were done - and very good. There is also the picture I mentioned above of the thermostat on the side of the Double Stack XL. Two of the pictures can give you a good idea of the lighting in the ovens as well. Summary I think the Double Stack XL is a feature rich toaster oven/air fryer/counter top oven. I was very happy with the results in general, but some things, like pizza, I would rotate half way through. The versatility of the different cook modes, and two ovens that can be used at the same time, add a lot of value and make this a great kitchen appliance!

Years ago, my favorite oven had a smaller, thinner oven (like a pizza oven) on top with a larger, more standard-sized oven below. We sold that oven in a house sale and have never had anything like that again. Since then, we’ve become very dependent on a countertop oven that sees more usage than our regular oven by far. Our existing countertop oven has been great, but Ninja just came out with an update to their oven that combines the best of all of these: a dual countertop oven with loads of features! **Size** Since you’re probably putting this under your kitchen cabinets, you’ll want to know the size of this oven. Ninja lists the dimensions as follows: 18.6 in L x 16.39 in W x 13.26 in H. By comparison, my previous oven was 11.6” tall, so the Ninja Double Stack adds a small second oven while not giving up much on the height of the main oven, and only adds about 1.25” to the height! For me, this was a big deal, since if it won’t fit under my cabinets, it has no place in my kitchen. The top oven compartment is ideal for baking small items such as pizza or dinner rolls or a tray of vegetables. It is definitely meant for those kinds of things, so keep that in mind. Trying to put taller items in there will result in the food touching the top and getting burned. **Controls** Ninja has done a good job of not overloading the panel with controls. Both ovens have their own time and temp buttons, and there is a dial for selecting things like cooking programs. There are 3 additional buttons for the thermometer: preset, doneness and manual. More on these later. There is one additional control, for turning on the Smart Finish feature, which allows the oven to time the completion of top and bottom ovens so that they’ll finish at the same time. **Features** The Ninja Doublestack XL includes 12 cooking programs: Bake, Broil, Reheat, Keep Warm, Toast, Bagel, Air Fry, Conv.Bake, Pizza, Air Roast, Whole Roast, and Dehydrate. These are selected by turning the dial to highlight your choice in the program list. One thing I think is pretty striking is the display. Unlike most competing ovens, there is no screen on the face of the oven. Instead, information shines through the brushed nickel finish! Before I turned it on, I assumed there was no display, but couldn’t imagine how I would know what choices to make (would it be a series of beeps?). This is a great design decision and contributes to the sleek, modern look of the oven. New for this year is a plug-in thermometer. The oven features a small port on the side (like a headphone jack) where you can plug in the thermometer. Insert the thermometer in the middle of the meat, then use the thermometer preset button to choose fish, beef, chicken or pork. You can also choose a small or large size (bottom oven only), and a doneness level (rare, medium, etc.). The choice of doneness level determines the internal temperature setting for the meat. The chicken setting only allows one temperature—165 degrees. The manual button allows you to set a temperature to whatever you like. There is also a button labeled “Smart Finish” which ensures that both ovens finish at the same time. Details about this in the next section. **Performance** I’ve been using my Ninja Foodi grill to air fry French fries, so I wanted to see how the Double Stack would compare. Using the included air fry basket, I cooked up a batch of French fries that were crispy on the outside and tender on the inside, easily as good as the results I get from the Foodi, but with less clean-up. Next, we prepared some meals using the thermometer. We dialed in the settings as described above for the top oven, then chose the settings for the bottom oven. The last step was pressing the Smart Finish button and pressing start. The oven with the shorter cooking time was automatically placed on hold while preheating the other oven. A progress bar showed how things were going on the bottom oven, while the internal temperature of the meat was shown for the top oven. Smart Finish ensured that both ovens finished at the same time—super convenient! More impressive was that if I made a change to the settings for either oven during the cook, it would recalculate the total time and adjust accordingly. After turning out multiple successful meals this way, we may just cook this way all the time. Random thoughts: using the top oven as a toaster also worked well, but it does take some experimentation to find settings to your liking. One advantage a regular toaster has is that it’s easier to get items out that are not laying on an oven rack. Preheating time in the top oven was only 3 minutes to reach 350 degrees, much faster than our large traditional oven. Convection airflow is noticeable in this oven, which I appreciated, coming from a previous oven that I was never sure actually circulated any air. This makes for speedy convection baking times. **Negatives** There really aren’t many, but I’ll mention two. A roast tray is not included, but really should have been, since that’s a needed accessory for roasting a whole chicken. The handle on the door, while being very attractive, is actually too big. When the door is laid down to pull food out of the oven, the handle prevents the door from laying flat, and that can make it a bit tricky to navigate the hot surfaces. **Conclusion** The Ninja Double Stack XL oven is an upgrade in multiple ways, and I’m very glad to have gotten it. We’ve had several Ninja kitchen accessories, and they’ve done it again with this one. Like all our other Ninja accessories, the Double Stack oven is built superbly and includes a plethora of thoughtful features that make it a joy to use. The only thing limiting our usage is when we need to cook a very large dish, but thankfully that’s rare. If you’re looking for a countertop oven, I’m not sure you can do better than this versatile model.

I've recently found myself living in an apartment again in a time of my life i didn't expect, so something like this that's a little more robust than your standard toaster oven is very welcome. Packaging: Comes in a pretty obvious black box printed for the product, if shipped to you it's inside another brown box. Inside is of course the unit, packaged with crumb trays, racks and an air fryer basket. It's all fairly straightforward. Use: I will say that the controls are pretty minimal, almost shockingly so, as will be obvious in the pictures. Yes there are LED displays that show up when powered on, but it really comes down to a very small number of buttons and a single dial. It's a nice minimalistic setup, but it almost feels like something is missing when you're looking at the front. But honestly that's being nit picky, because if it doesn't need it why add extraneous controls unless there's just more features that need it. I will say the unit is pretty large so be sure you have the counter space for it. You can cook two things at once or two different ways with different temps. It's rather robust for a toaster oven, having features you usually only find in full size ovens. I was able to cook two pizzas at once which was great and without having to wait forever for a full size oven to preheat and for this to do it more effectively than one at a time, it really was great. It's really a very clean look and i love that the door can function as a top only door or can open both levels at once. There's a lot of space inside so it can cook much larger things than your standard toaster oven. Honestly if there was such a thing as a gourmet toaster oven, this would be it. With multiple levels and separate temps it really can do a lot for something like this.

The Ninja DoubleStack XL Countertop Oven & Air Fryer combines pretty much every countertop appliance other than a coffee maker into one (rather large) unit. Ninja has outdone themselves with the capabilities of this cooker. Thanks to the smart DoubleStack design, you can use multiple cooking modes at the same time to prepare meals even faster. #Unboxing and first impressions# The Ninja DoubleStack XL is huge. I feel like I have to get that out of the way early because from the moment you open the box and realize it's not entirely full of packing materials you start to think it might be too big. I was hoping to replace a rather large air fryer and my standard popup toaster with the DoubleStack, and in that sense it does take up less square footage on the counter. Still, making it fit with the decor of my kitchen required re-arranging things a bit. Included in the box you get a basket for air circulation when using the air fry mode, two standard racks, two baking sheets, and the Pro Cook thermometer probe. #Using the oven# The DoubleStack basically divides its features across the top and bottom chambers. The top chamber has basic bake, broil, reheat, and toaster functions. The bottom chamber has convection bake, air fry, and roast/air roast functions. One of the coolest features of the DoubleStack is the automated "Smart Finish" mode that syncs the cooking cycles between top and bottom so they finish at the same time and your food is hot and fresh and ready to plate at the same time. The air fryer function of the DoubleStack works very well. So far I've tested it on single layers of frozen foods in the basket and it produces a nice crisp outer layer and even heating inside things like chicken nuggets and breast patties. I did notice that I need to up the temperature slightly from my previous air fryer to get the same finish. Where my previous air fryer would get a crispy outer layer at 370 degrees, I found that 390 to 400 was perfect on the DoubleStack. I've also used the toast, bake, and reheat functions in the top oven and they work as expected. The toast function with the "Shade" setting is awesome. It's super easy to get the perfect doneness on your toast. I have not used the Pro Cook sensor yet, so I cannot speak to its efficacy. However, I wanted to highlight how smart it is for the sensor to have its own magnetic attachment that sticks to the side of the DoubleStack. Makes it very easy to keep from losing this important accessory. #Conclusion# I'd recommend the DoubleStack XL for anyone looking for a do-it-all countertop oven that has a premium look at a reasonable price. It's easy to use and get good results cooking quick favorites, with the ability to cook pretty much anything you can fit into the oven. I can't wait to roast chicken and pork shoulder in this oven soon.

I have no idea where this thing has been all my life and why I have never owned one but I'm glad I have it now. The ninja duel air fryer convection oven combo XL is the world's greatest invention. If it didn't come out of a box I would have swore it came from God Himself. First things first right out of the box you get a little booklet that tells you the important safety instructions and so on and so forth. Once you have read that for about 2 seconds you move on to the menu book where you find all the goodies, yummies and everything that you can do with this. I've had it running and operational in my house for 2 days and my children believe that I am a better cook than Gordon Ramsay. My salmon that I usually do in a pan came out ridiculously perfect. I will never put salmon in a pan ever again. The stainless steel and double door opening capability gives it a very aesthetic feel and sleek look to any kitchen. Even though those panels look like they're just silver panels. They're actually a little digital light up display showing you the time, temperature, and whatever else you have highlighted from the top or bottom option. I haven't had a chance to use the smart finish option yet, but if it's anything like the actual stop and go function of this combo I can't wait to see what I can do. I did undercook two things but that's just getting your timing down with your new tools. I recommend it if you don't have this or even a knockoff of this. You need to get to it ASAP. This is an amazing product and it belongs in every kitchen in America.

Introduction Ninja is well known for making a wide variety of small appliances. Ninja is now jumping into the small oven category. Going in I have a good number of Ninja small appliances, so I was looking forward to see what innovation they included into this oven to make it stand out. What comes in the box? Out of the box you get the main oven, 2 base pans, 2 grill tops, a crumb tray, a meat thermometer, and a inserts (Recipe guide) Minor wins I do really like the utility of having two separate ovens in one that have their own separate temperature cook rate. Major wins Usage The overall build quality of the oven is quite nice. It’s also surprisingly light. Setting it up is super simple. You plug it in and add the crumb tray, the base pan, and or the grill top. You have a lot of options to choose from on either floors of the oven. The top oven is a toaster oven, and is for quick cook options, and the bottom is an air fryer, for longer food items. I think that’s why you have the option of opening just the top so you can quickly remove and add more items. You can choose the presets and go from there. You also have the option of using the manual meat thermometer to cook your meat to the proper temperature without too much worry. I am absolutely shocked that there isn’t an app to use with the oven. I thought everything came with an app these days. I say that sarcastically, but I think in this case, an app would have made a lot of sense. The app can let you see how much time is left, but most importantly, you can see what the temp on the meat thermometer is just in case you want to undercook something to baste and continue. I used it to make a batch of fries on the bottom, and reheated some fried chicken on top. Both came out crispy and no oil was used whatsoever. Clean up is easy. Simply clean the pan or the tray and that’s it. I do like the light that dims on and dims off. I do wish this oven was a little larger. Minor issues The meat thermometer port has this little silicone plug that is attached to the unit and the other side plugs into the port. I’m guessing it’s for dust protection. My gripe is that the plug doesn’t go into the port completely. In fact, it just dangles there. Like I said, it’s a minor gripe. Another minor issue is that both doors can’t be opened independently. You can open the top door by itself by pressing the button. You cannot however do the same for the lower half. I think it would have been nice to have a push button that releases a lock on the lower half. Major issues The control panel is straight forward, but flawed. I have many appliances that have touch panels, so to see a turn knob on a modern appliance is disappointing. You have to turn the knob to choose the cook category, and then press temp/shade and then turn the knob again, and the same for times, and the manual temp option. It’s just odd seeing a lack of a touch panel on an appliance in 2024. I would think it may cost the manufacturer a little more to add it on. Maybe on the next version? Primarily for People who either have space in their kitchen and want the utility of having two mini ovens, or people who just want the comfort of having an extra oven. Probably not for People who have very limited space on their counter space already. All in all It’s a great little oven. It has its flaws, but in terms of overall usability and functionality, it’s great.

I'll be honest, I do not like to throw down in the kitchen. I keep it simple and basic. Let's just say cooking is not a specialty for me. But the Ninja Double Stack Air Fryer is right up my alley! It's simple to use and cooks fast. The ease of use is for anybody. The buttons are easily visible and the display is easily visible as well. The simplicity and ease of use go a long way for me. The included items mean you don't have to go out and pay for anything extra. Outside of some air fryer liners maybe. The top portion is great for warming up quick meals. It can be used separately or synced with the lower oven. The bottom portion can be used for much bigger meals if needed. The included basket tray makes things much more manageable. You get different modes as well such as Broil, Toast, Bake, Reheat, Keep Warm, Whole Roast, Air Roast, Air Fry, Conc Bake, Pizza, and Dehydrate. Now that is a lot of settings to cook with. The main addition that I enjoyed while using the over was the turn knob. It felt very good while adjusting the temperature or the time. I'm glad Ninja didn't skimp out here. This will be the most used function of the oven. So having a crisp knob is great. Another feature is the display will show "Hot" letting you know the oven/air fryer is still warm. That way nobody burns themself or places something on top of it. The only con is the oven timer isn't very loud. If I'm on the other side of the house I can barely hear it go off. Outside of that, I didn't experience any other cons with this amazing device. This was a great addition to my kitchen!

It’s hard to know where to start with this double oven/air fryer just because it’s such a great appliance for our family. From air frying wings to mini pizzas to cookies, etc. etc. we’re always needing to have an oven going. The difficult part for us is getting our full size oven up to temp while using a fraction of its actual cooking space is kind of a pain. Often, we just need a small item or a few items cooked and don’t need a full size oven. Thankfully, this oven is PERFECT for our needs. The ability to have two separate ovens doing two separate things is amazing. We can be baking cookies for dessert while we’re frying wings on the bottom. The unit comes up to temp quickly and cooks very evenly, especially in the bottom oven that has convection capability. The included digital thermometer is fantastic if you need to dial in temps or make sure you get the perfect doneness on your food. The unit itself seems very well made and all of the included sheets and racks are top quality and clean up well in the dishwasher. It’s simple enough that our kids can use it while being capable enough to cook some amazing meals. The unit looks incredible on the counter especially with its “hidden” display. When the display is off, there’s nothing but brushed stainless steel which gives it a very upscale look. Overall, we’re incredibly happy with this oven. We’ve only just begun to use all of its capability and we cannot wait to use it more.

Overall: The Ninja Double Stack XL Countertop Oven & Air Fryer with Pro Cook System does a lot of different things well for a countertop oven. The device is easy to use, has 2 separate ovens that can be used independently of one another, and is versatile enough to use as a toaster or a full-fledged oven. Cleaning it isn’t the easiest, since only one crumb tray is included for the top portion of the oven. That’s just a small pet peeve in an otherwise list of great things this oven provides, though. I toasted a variety of breads and bagels, all coming out crisp at the level 3 setting. I cooked a frozen pizza in the bottom oven and that also came out great. These are pretty basic items, so I went ahead and tried air frying some wings in the bottom oven with great success as well. Frozen chicken was no biggie either on “air fry”. You name it and I cooked it in this thing. Vegetables, tater tots, hot pockets, french fries, steak kabobs, etc. Everything turned out great, no matter what I tried cooking. I also tried the meat thermometer and set my desired temp. Once you plug it in, you just stick it in your meat and let the oven do its thing. Once the temperature you choose is reached, the oven shuts itself off. Pretty easy and convenient, as I don’t have to worry about checking my meat by pulling it out of the oven 12 times while it’s trying to cook. The Ninja Double Stack XL is a cool kitchen gadget, but it takes up a lot of counter space and costs a pretty penny. If you've got the room and the cash to spare, go for it! Here’s a quick pros and cons list to help you decide if this oven is for you. Pros: Large capacity: Can cook two foods at once, making it great for families or entertaining Versatile: Can cook a variety of foods, from pizza and wings to roasted vegetables and baked goods Easy to operate: Intuitive controls and preset cooking programs make it easy to get started and cook common foods Cooks food quickly and evenly: Powerful heating elements and air fryer technology ensure that food cooks quickly and evenly. Even my bagels came out looking great Sleek design: The stainless steel is a classic design that will fit in with any kitchen decor Built in detachable thermostat: You can cook meat to a certain temperature or doneness with the included thermostat. The oven will just shut off automatically once the criteria you select has been met Cons: Expensive: This is a luxury product, priced as such Can be difficult to clean: A crumb tray for the bottom oven would have been nice

We use this every day. It’s easy to use. The instructions are clear and the controls are simple and convenient. We’ve been using this more often than our large stove. Anything you Need to toast or bake or broil can be prepared in the Ninja Doublestack oven and air fryer. Plus you can use both ovens at the same time. We’re very happy with it.

So far so good. Works like a charm. Preheat is quick and cooking has been a breeze. Primarily have used it for toasting and air frying, but the function has been great. Everything has cooked evenly too.