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Portable Oven Personal Food Warmer – 110V Portable Microwave Mini Oven, Heated Lunch Box for Cooking and Reheating Food in Office, Parties, Travel, Bedroom, Home Kitchen, AOTTO (Black)
$29.99
- ✅ NO MONITORING REQUIRED W/AUTOMATIC TEMP CONTROL: This self heating portable oven for work will automatically cook, reheat fresh, or frozen meals evenly and without burning, overcooking, or producing bad odors. Easily cook meals in your office, bedroom, or home kitchen by simply placing your meal inside and plugging it in.
- ✅ PERFECTLY COOKS WARMS AND REHEATS MEAL: Heat your food quickly without it drying out. Preserve moisture and nutrition with a 110V connector for your portable food warmer lunch box. Enjoy less hassle with warm tasty food, faster anytime and anywhere. This personal mini portable oven electric lunch box is perfect for leftovers, prepared meals, and frozen foods.
- ✅ COMPATIBLE WITH MULTIPLE CONTAINERS: Our portable warming lunch box is compatible with most heat-resistant containers such as aluminum foil, metal, plastic, glass and more. This portable self-heating lunch bag is suitable for cooking from scratch, repacked meals, and can accommodate large containers up to 9″ L x 6.75″ W x 3.5″ H.
- ✅ PORTABLE AND CONVENIENT: This heated lunch box warmer design with a carrying handle. You can put the portable microwave food heater in your backpack and carry it to any place. It is a great choice for taking to in-office work, parties, travel, school dorm, hotel, and different job sites, perfect for office workers, patrolmen, nurses, and more.
- ✅ YOUR SATISFACTION GUARANTEED: Aotto is our commitment to providing our consumers with high-quality products. If there is a manufacturer defect, simply contact our service team for a free replacement. Our company is dedicated to offering you a 1-year warranty. Please note that new packaging is replacing the old packaging now, so you may receive a new packaging product.
Color:
Black
Diane Vaughn (verified owner) –
I love this , it’s right on time, take no time to heat up.
Nick (verified owner) –
I travel sometimes 3 weeks out of the month. Trying to stay on top of any diet is tricky. When I pack my meals and this product, I don’t have to worry about finding a microwave to heat my food up. It packs so easy being super light and heats up super quick. I use plastic meal prep containers and I think it even heats up more evenly and better than a microwave. Great value for the money.
Edwin Nazario (verified owner) –
Me agradaron todos mis productos
Amazon Customer (verified owner) –
I started traveling very often this year and needed something when I’m in a hotel with no microwaves. It’s great for heating up food.
Chris (verified owner) –
Great for transportation workers. Heats food in anything microwave safe.
Ddmm (verified owner) –
My husband loved it perfect at work
Tegan Taylor (verified owner) –
This heats up food like an oven so things don’t get rubbery. I put my lunch in about 45 minutes before it’s time and then it’s perfect.
Kelly Walters (verified owner) –
awesome for the office, car, or trailer.
Amazon Customer (verified owner) –
I use sturdy food grade silicone food storage containers to heat all my food in. This is very lightweight and works amazingly well. I set this up a couple of hours before I eat lunch and my lunch is heated perfectly. The food temperature is even throughout. I heat my lunch up for approximately 2 hours (sometimes it goes over due to how busy I am) and have heated up both frozen home cooked meals and refrigerated home cooked meals. I have heated up a pre-packaged Omaha Apple Tartelette and it was heated perfectly in an hour and a half.
I cannot say enough about how much I love this little box. I never use a microwave oven and it is time consuming for me to heat my food in our work oven or the stovetop. Not only that but it is so much easier to wash one silicone dish (I eat straight out of that) instead of a pan, a spatula and a plate.
Y (verified owner) –
Best purchase ever! It reheated the food quickly and kept it warm. Loved it!
Mildred Eubanks (verified owner) –
I used this on a trip. Hotel didn’t have microwave! Heated better then microwave 😁
Jay R Little (verified owner) –
Warmer works great… does not re cook your food… really like it
saxxy (verified owner) –
I’d recommend, I was skeptical but to my surprise it works! I used it to reheat leftovers in a glass Pyrex dish yesterday my food was scorching hot in 30 minutes. It’s only 80 watts with these soaring electricity bills this will make my pockets happy a small microwave uses about 700 watts, yes it works faster but it costs more! Today a warmed up a frozen dinner it was piping hot as well take my word for it , it’s worth the economical price.
natysha valentine (verified owner) –
So far, I’ve only reheated my food in it. I think it works great. No unusual spells for me. The food is not dried out when done. I’ve recommended to a friend who would benefit from it. I’m planning on buying more as gifts to a couple of people.👍👍
Heads up, give the food time to cook/heat up before starving mode kicks in, lol.
Amazon Customer (verified owner) –
I love it. Heats my food thoroughly. I plug it in and when I’m ready to eat,it’s piping hot. Taste way better than warming in a microwave.
Danny Galeano. (verified owner) –
Si lo conectas una hora antes lo calienta excelente.
Amari Smith (verified owner) –
It’s was very useful
BigBoii216 (verified owner) –
This thing is incredibly cool a must have when there isn’t a microwave around just plug it in and warm your food up and chow down
Antonio Marquez (verified owner) –
Was a bit worried if this product would actually work but as soon as i tried it, i was very impressed with it!
Turned on right away and heating top started producing heat right away. Super easy to use and amazing quality. Highly recommend it!!
Julia (verified owner) –
love it, warm up pretty quick compare to other companies and keeps my food warm.
Virginia (verified owner) –
Muy bueno. Trabajo viajando y eso me ayuda a tener mis alimentos calientes.
Matt Brennan (verified owner) –
I was excited to write this review, because I hardly ever review anything. I have a Pack-It freezer lunchbox that I have been using for years. And it worked perfectly fine when I was at a white collar job with a break room and a microwave.
But ever since working construction, all my food has just been cold leftovers. I looked up a solution and this was the very first thing I found. With all the other positive reviews, I thought, “$30? Why not?”
It’s actually life changing, and I’m not exaggerating in any way. It’s genius, because there is enough space in this lunchbox to store my entire OTHER lunchbox, so now I’ve got a combo fridge and microwave for my cold food and hot food respectively.
The lunchbox works very well. Every time I’ve used it, I’ve given it 40-60 minutes to warm up big tubs of food, and it’s always come out steaming hot. It’s a 10/10 for me, and now I can enjoy a wider variety of food at work, and I have no craving to waste money and eat out.
If you have the brainpower to hook this up an hour before your lunch break, this is the product for you. If you want better, healthier lunches on the go, this is for you. I couldn’t more highly praise this invention, and I’ll be using it for years to come. It will pay for itself many times over. Just get one.
Jessica Charles (verified owner) –
Eficaz
Cássia Carneiro (verified owner) –
It’s big, there is cord storage and the plate warms up fast. I love it!
Denise (verified owner) –
Nice
katherine crayon (verified owner) –
I love this food warmer! It acts like a microwave oven. I used it at work with glass containers and at Coachella with plastic and cardboard containers. It heats up pretty quickly but you have to leave it on for at least 30 minutes depending on how big your food is and if you’re warming up a refrigerated food or a room temp food. I bought the one with a 110v cord. I should have bought the one with car cord as well but I thought I wouldn’t need it. It would be great for long drives or camping trip when you don’t have a wall socket to plug it into. Its 10/10 recommended
Rose (verified owner) –
I bought this because my nasty coworkers think it is ok that cockroaches get in the microwave (side note, they don’t always die if you accidentally cook them).
I accidentally left a plastic leftovers in the bag for to long (like an hour) and it left a small burn/melt mark on the hot plate. So for myself I need to use glass containers because forgetting to unplug it at the suggested time is a common for me.
Sun K (verified owner) –
I have been cooking for my dog her whole life. One thing I didn’t like was not being able to provide her with fresh meals when traveling. I am able to cook a grass fed steak (uncovered in a Pyrex bowl) in one inch strips and have it cook in less than 10 minutes. & the same with fresh salmon. If you are trying to cook dense food, it takes a very long time. I find this product is great for cooking raw proteins and reheating foods. I would highly recommend!
Lisa (verified owner) –
I like the product. I wish it would have come with a car charger but other than that it does as it states.
cici A. (verified owner) –
I don’t typically write reviews, but this is something everyone should know if they are trying to avoid microwaves. I wanted to figure out how to reheat leftovers without using the nasty microwave at work and ruining my food with radiation. This product warmed up my leftovers in one hour and it was super delicious. It didn’t smell at my office and it’s pretty discreet. I love it.
Patrick C (verified owner) –
I use this device to heat my food at work when I’m to lazy to walk all the way to the cafeteria and wait in line to use one microwave. Now, I can easily heat my food on top of my desk and eat whenever I want to! J
Learning4life (verified owner) –
I travelled extensively for work and pack my weekly meals and hotel rooms not always have microwaves to heat them up. This little and inexpensive gadget fully warms up any type of foods in a very short time( about 25-30 minutes). Travels beautifully since it collapses flat and fits anywhere and it is incredible easy to operate. It is nothing more than a heating plate inside an insulated bag. You only have to plug it in. Brilliant!
squawker (verified owner) –
Perfect for my desk at work. Set my lunch in it and later when I am ready to eat, it is ready and I can set back, eat and relax, no hassle.
Araceli (verified owner) –
It does warm up food as expected, but be sure to plug-in an hour before your meal time.
Michael Finney (verified owner) –
Gets hot and works great!
Ed (verified owner) –
The heater element is very impressive and warmed up the food so good that I had to let it cool down. I also like the fact that there was plenty of room in the container
Briana (verified owner) –
Heats up fast for a 30 min or longer refrigerated is ok
Carlos (verified owner) –
Good for work.
M. Young (verified owner) –
I’ve been using this to heat up my food at work for over the past 3.5 years and absolutely love it. It hasn’t failed me yet.
LL (verified owner) –
Lightweight, great for work. Food comes out nice and hot.
jose caicedo (verified owner) –
Easy to use and clean.
Tricia R (verified owner) –
Aotto Portable Oven Personal Food Warmer.
No more microwaved food.
Amazon Customer (verified owner) –
Perfect to use while at work in the winter, good size and it takes about 20 min to warm up
Dee (verified owner) –
We don’t use microwaves, so I bought this for my daughter to warm up her lunch while at work. She loves it! She plugs it up for about 1 1/2 – 2 hours before her lunch, and her meal is perfect every time.
A. Masters (verified owner) –
Love this thing, when I start getting hungry I plug this in, pop my food bowl inside, and zip it up for 30 minutes to get warm through.
Erick Daniel Martínez González (verified owner) –
Me agrada que siempre tienes tu comida caliy lo malo es que te ofrecen el cargador de carro y no lo trae al menos el mío no lo trae
carla (verified owner) –
Me encanta calienta super buen contenta de poder comer caliente en este friooo en mi trabajo
Update (verified owner) –
It is perfect to keep something warm for a few hours or heat a dinner up without drying it out in a microwave. One of my best purchases this year 🙂
d v peavy (verified owner) –
I’ve only had the opportunity to use it once but it’s better construction than a similar product from another manufacturer I was using. I do night shift maintenance so my breaks aren’t set in stone these are a big help in getting a hot healthy meal. It worked as needed on a frozen dinner and I expect it will serve me well. My only concern is it may be a but snug with larger box dinners.
Yolanda F. Ross (verified owner) –
I really enjoy being able to warm my food in my classroom. I don’t have to use the community microwave.
Latika88 (verified owner) –
I did not realize how well this thing would work! I plug it in at my desk at the office and throw my typically 2-3 cup container of soup/casserole/etc in it at 11 and by 11:45a it is perfectly heated through. There is no scalding, cold spots, burnt spots or drying out. You can even touch the bowl without burning yourself…somehow. Granted, its still very hot, it doesn’t get burning hot like in a microwave or oven. I’m not sure how this works so well but I prefer it to my personal sized crock pot even since this tends to leave dried out edges since it cooks in the metal insert and not the dish you stored it in. Great product for a surprisingly great price!
Alexander Michie (verified owner) –
This thing rocks. I got the one that plugs directly into a wall /no car plug but I couldn’t be happier. Every day that I have used it by the time lunch comes around my food that I have packed is hot and ready even from frozen. Hot foods stay Hot and it will cook frozen food to piping hot temps. I have very limited places to get lunch at around work and this has supplemented the need to run out to get hot food. Plug it in and let it sit. Highly recommend.
cristina (verified owner) –
so i love it, it heats the food up well. but it ruined both containers i used for it. the first picture i included says it’s microwave safe but it still melted a bit. n then the black heating tray has the spot where it’s melted. so idk what to do. I’ll still use it though
Erika Villarreal (verified owner) –
My dad is pilot and has one, he loves it and takes it everywhere. I bought one as a gift for my flight attendant friend and they love it too!
Lindsay (verified owner) –
Works great! 45-60 mins and you’ve got hot food! I usually bring food that I meal prepped to work for lunch. I just plug the box into the inverter and pop my Tupperware into the container then I zip it up and a while later I’ve got a hot meal. I find it very convenient because I don’t have to stop at a truck stop to use their microwave. I’m a local driver so it’s nice to have this light weight device rather than a whole microwave that I have to move when slip seating.
Jonathan Bruce Ayres Jr (verified owner) –
Got this so my husband could take a hot lunch to work. It’s definitely everything it says. His food was hot. Easy to carry and plug in. He uses it often. It’s consistent on the temperature his food is.
JoAnn Caruso (verified owner) –
This item is great for a hot lunch. I took my cold food to work and put it in there and plugged it in and in 25 minutes I had warmed food. But you can also leave it in there and your food will cook if it’s raw. All you do is plug it in and the price is unbelievable for what it’s worth
Natasha Oxley (verified owner) –
I was a bit skeptical at first seeing how the setup is but I was so happy when I tried it. I had one of those Amy’s frozen meals and it heat it up to perfection in no time. Plus it tastes way better than the microwave too! Definitely will suggest! Great option for vanlifers too!!
Gina (verified owner) –
Best product ever especially during this pandemic. I use it at work so I don’t have to use the microwave everyone else is using. And my college student loves it too, it eliminates some of those trips to the basement to nuck her food.
C (verified owner) –
I use plastic 50 pack of meal prep containers with this. I figure if you can nuke something in the microwave you can heat it with this little bad boy. It looks like a lunch kit which is great, because my bosses are despots and want to tell us exactly what devices we can and can’t plug in. So I am not allowed the luxury of coffee in my room, but at least I can plug in my lunch and have it ready for me at the crisp and early hour of 10:30 in the morning and be able to wolf it down in 30 minutes. This heating lunch kit helps me save precious time I’d have to use fighting for a dirty microwave in a teacher’s lounge full of PMS-riddled women. Thanks to this product I can eat a hot lunch go back to correcting other people’s badly-behaved and socially inept children.
arishay (verified owner) –
I just ordered the wrong one, we just bought an adapter for my husband be able to use it in his truck. I like the fact that it work as it said it will work. My husbands love’s it. Now he can have hot homemade meals on the road. Saves a lot of money now💪
Daisy Elmore (verified owner) –
I bought this when I was in cosmetology school and only had a 30 minute break for lunch it was worth it. When I go to school I would plug it in and by the time came I had hot food. It saved a ton of time when other people was running to the microwave. I used glass bowls I got from target and it was perfectly fine.
chanda torres (verified owner) –
My husband absolutely loves this. He travels for work and never knows where he will be.. This is so convenient and always talks about how much he loves it. Plugs it in before going I to a customer’s home and when he is all done is lunch is warmed up and ready to eat.
Gwen Reynolds (verified owner) –
I received this as a Xmas gift from my son. I use it at work to keep from having to use the microwave. This is a great option to use during COVID. I usually will start heating my lunch about one hour before. I use a glass or metal container to heat because it heats the best.
Kris L (verified owner) –
Got my hard working hubs one of these for Christmas & he couldn’t be happier to have warm meals and no more boring blah sandwiches on the construction sites. It’s also amazing since i will typically put leftovers in his lunch so it trims down the lunch making process for me in the a.m. 10 stars!!
Tenzin Kunsal (verified owner) –
It heats up well after 20 to 30 mins. Its perfect for people who are in different job sites every other day. No microwave no problem. Heats the food all the way. No cold spots.
Amparo Gutierrez (verified owner) –
I ordered this for my husband because we recently got rid of our microwave at work (office work) and this does the trick for him he just pops his food in the bag an hour before the time he will eat and bam!!! He super happy with this product which was recommended by our neighbor at the office. So far we haven’t had issues with it and mostly everything can be warmed up as far as containers.
Ann (verified owner) –
My husband uses this in his semi when he works. I make him meals in glass or hard plastic Tupperware and he heats them up while he drives. 2 hours and it’s steaming hot. Saves us a ton of money, and so much healthier for him to not live on truck stop food.
Meredith Maher (verified owner) –
No microwave at work? Is your shack 90 million floors down? They haven’t put in temp heat yet? No worries, this little pack heats up your lunch while you are making clean money with dirty hands. I plug it in at coffee and by lunch my food is nice and warm. It doesn’t get crazy hot, but the convenience and cost out weighs the desire for slightly hotter food. Note: it does take at least two hours to fully heat a 32oz ball jar full of food.
It is small enough that it can stay in the gang box, mine is squished down in my tool bag , without being in the way and big enough to heat up all your calorie requirements.
mismiles (verified owner) –
After returning to work, I did not want to use the office microwave. This was perfect in reheating lunch. I plugged it in a couple of hours before lunch and when it was time ro eat, food was HOT all the way through. It didn’t melt the plastic container. I tried a glass container filled with cold water. After an hour or so, it was HOT! Easy to use.
Yesika E Alvarez Mosquera (verified owner) –
I received this yesterday (6/23/21) and I was able to put it in my backpack to bring to the office on 6/24/21. I’m planning on keeping in my office since there’s no microwave and I can’t possibly buy lunch everyday! This portable food warmer is PERFECT and who ever invented is a GENIUS! I ate spaghetti today with sauce and some cheese. I heated for an hour and it was perfect temperature. I also place aluminum foil around my glass container as to help with heat production but you don’t have to do that. I grabbed my nice and warm lunch and went to the office patio to have my lunch. Thank you for this!
marissa armstrong (verified owner) –
I’m a trucker and this thing has been a game changer! It’s a good size- can fit hefty sized containers in it and it heard things through thoroughly without overcooking it. Living on the road is very expensive and I spend tons of money on a bunch of crap but this has by far been one of my best investments. It’s easy to use and warms up quickly. Just plug it in, put in your food and go. I don’t understand how it works exactly considering some food can be ready in like 15-20 min but even if you leave in for hours is still cooked to perfection. 🤷🏾♀️ highly recommend this item
Marcia Cano (verified owner) –
I bought it for my husband, he works as a carpenter and sometimes the building doesn’t have electric outlets. Since we don’t have a car I bough a portable battery 🔋 and it works perfect. His food is always hot and warm for his lunch. It’s not heavy and it’s a perfect size to carry with all his tools.
Yo le compré esta a mi esposo porque trabaja en construcción y casi siempre estos edificios aún no tienen estructura de electricidad, entonces le compré una batería portátil y funciona perfecto. Su almuerzo siempre está caliente al momento de servirse.
Mackenzie M (verified owner) –
I bought this because the microwaves were removed from our break room. I was tired of cold sandwiches every day, and often times longed for a hot meal at lunch. I heard other coworkers were using these, so I decided to go for this one. I didn’t care for the alternatives which had a build in container; I wanted to use my own. So, I opted for a hotplate.
I was concerned about the food’s aroma occupying the office air, but the insulated bag does a great job of confining it to bag. After about one hours time, my food is nice and warm with no stirring necessary (Most of the time).
I would certainly recommend this to anyone, regardless of availability of a microwave.
Patty (verified owner) –
We’re back to work in the office, due to the new pandemic safety rules we’re not allowed to use the microwave, this little lunchbox is a life saver I actually have to be careful not to burn myself at lunch time 😊and the food doesn’t dry up, it’s just great. Best part is that there’s no food smell all day either no one can tell. Warms my lunch don’t have to worry about the container material, don’t offend anyone with food smells and sometimes I just warm my cup of tea on it, then I just unplug and put in my filing cabinet because it can be collapse…BEST purchase ever!!!!
Nimgol (verified owner) –
I just received and tested it and I loved it. It was exactly what I was looking for for work. your lunch will get warmed after about 30 minutes but as they said if you want to cook it it will take about 45 minutes or an hour. The heater won’y get that hot to get on fire and comparing to microwaves it will warm up your food naturally. Make sure you read the safety tips.
Update 4/6/2020:
Well if you want a warm food it needs between 1 and a half to 2 hours to get warm completely. 1 hour is certainly not enough to have a warm food (unless is a watery food like soup. Keep in mind that it is not a microwave and warm it up at-least 1:30 hours before your lunch time.
Mikayla (verified owner) –
This has to be the best thing I have ever bought. I used it to heat up boneless pork chops and stuffing. The stuffing was moist not dry and the pork chops tender not rubbery like warming it up in the microwave. I plugged it in took about 1 hour to heat up. I did my work while it was heating. It closes with a zipper so it’s true what they say. Your co-workers will not smell anything.
Use a small mat under it in your desk. It gets extremely warm and will radiate heat into the desk. With the mat underneath you don’t haveto worry about it doing anything to your desk. Wipe off any food with a warm rag comes right off. I’m saving money not buying out for lunch at work and the food is healthy and no preservatives plus I made it so I know it’s safe with this whole Coronavirus going on. I feel safer eating my own food.
Highly recommend it!!!!
Peach (verified owner) –
After using for awhile now, I plug it in at 3 and eat at 6. My food is plenty hot. It’s easy to clean and I like the zipper pouch for my tableware. I do wish the handle were not so short. It’s awkward, difficult, for me to carry without tipping sideways, potentially spilling liquids in the bag. The cord storage is quite handy. Durable. The zipper is holding up well. I changed it from 4 to 5 stars.
Original review
Used only one so far but:
Works like a charm. I put in my prepared food from the fridge. In 2 hours being plugged in my food was ready to eat.
Downside: pretty small for big appetites. Carry handle is small, a little awkward to keep flat. The very compact area for utensils has a zipper in question. It came split but is functioning so far. Lightweight so I doubt it’s durability.
Overall it is great for me.
RubyMcFarland (verified owner) –
Let me tell you, if possible, about my work environment. It’s 952 paces (average 3 feet per pace) from my desk across two ware houses to a tiny break room where the microwave is. It takes eight minutes to walk it. Of course the break room is crammed with people at lunch. Heating food generally used up another 10 minutes as you gotta wait on people in line. So there’s 18 minutes of a 30 minute break before we even walk back.
The rules say no food is allowed in the warehouses, yet, we risk our jobs every time we want hot food to walk through with our cold food, then back with our hot food – which isn’t very hot anymore by the time we get back to our desks. Plus carrying a hot container has other risks.
Added is the risk that we drop our food… This hot plate’s arrival today was especially sweet because just today, the guy who gets a 1 hour lunch and is allowed to leave the property during work hours to go buy hot food or whatever he wants to eat – while us peons suffer and starve – he said, “I would ask for a new printer before a microwave oven for our department.” We have a printer, it works. He just wants a fancier one, and would let his crew eat cold food or get fired to eat hot food during our 12 hour shift, before he would supply us with a microwave. Ya, he’s a real piece of dweep this one.
So I bought this thing. I chose it in particular because as a soft sided bag I have more options for food container sizes and shapes. It arrived today while I was at my crappy job. Soon as I got home and unpacked it, I put a dish of soup in it and plugged it in. It seems to work amazing and forgive me for gloating, but I cannot wait to take it with me tomorrow and eat fresh hot food at my desk while my co-workers turn green with envy.
I plan to keep this item at work, and carry my cold food in my lunch box as usual, heating it at work (because i carry a lot of other stuff in my lunch box as if it were a purse and still need that bag for it all). This is an amazing idea. So here’s a swift kick in the shin to the A-Hole who will not submit a request for a stupid microwave for the nine people who eat cold sandwiches every day while he leaves site to go eat good food. I wish I could infest his chair with lice.
Julie F. (verified owner) –
This little food warmer works great! I mostly use a sealed glass dish in it to warm soup at work. I plug it in at 10:30 -11 am and whenever I have time to eat between 12-00 and 2:00 pm, the food is perfectly steamy and warm. I’m a nurse at a busy office and this has increased the quality of my work life greatly! I’m going to buy them for others! Side note: I was concerned about others smelling my lunch warming up but I asked around and no one noticed. Also, there was a slight ‘new plastic’ smell at first, but it went away after the second use. It’s made very well. Money well spent!
Molly C (verified owner) –
Love how fast this food warmer works! Heat up my leftovers in less than 30 min. My food was hot and at a perfect temperature! I bought two different food warmers and My Aotto food warmer outperformed the other one. I just ordered another one so I can heat up two meals at one time. Light weight and very easy to travel with. The other food warmer I bought was very different. It is plastic with a metal container and a snap on lid. The bottom of the other food warmer was hot but heat didn’t radiate throughout so only food that touches very bottom of container got warmed but not on top. After 40 minutes I end up transferring the food that was heated in the other warmer to the Aotto.
Only used it a few times and very happy with purchase. Hope it will last a long time. Seems durable and retain heat very well. Was very impressed and meet expectations.