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Home » School Lunchbox Containers & Supplies

Top Thermos Lunch Box Containers for Kids

By Laura Fuentes Updated Dec 30, 2024

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A good thermos can be a lifesaver when it comes to packing a healthy school lunch. Finding the right thermos container for kids? Not so easy.

In this post, you’ll find 8 thermos containers that will help you utilize leftovers and pack lunches like a pro! I included thermos for kids of all ages and even 2 that keep the food hot and have a wide opening like this one!

soup with veggies inside a thermos container held with a spoon

Nowadays, nearly all thermos containers are double-walled and made of stainless steel. You’ll also find them as “insulated food jars” since “Thermos” is a brand.

If a food container is made out of plastic but promises to keep food hot, don’t waste your money. The containers below have been tested by many parents and will last a long time.

Kids Thermos for Food

If you’re looking for a thermos to put food in that keeps hot food hot for hours and cold until lunchtime, below are our tested and most loved thermos containers.

Hydrapeak Wide Mouth Thermos

Features & Price
I recommend the 18oz size.

  • Wide opening that makes it easy to access the food (favorite feature).
  • Holds 18oz of food, perfect for big and small kids.
  • Keeps food hot for up to 10 hours.
  • Keeps food cold for up to 16 hours.
  • Durable & has a lifetime guarantee.
  • Odor-free & top-rack dishwasher safe.
  • Price: $20

    *the most affordable wide-opening thermos.
Buy it here
Green durable thermos

Thermos Foogo

Features & Price

  • Holds 10 ounces (about 1.5 cups) of food.
  • Keeps hot for up to 5 hours.
  • Keeps cold for up to 7 hours.
  • KID-FRIENDLY. The rubberized grip on the lid makes it easy to open.
  • Durable.
  • Easy to fill and eat out of.
  • Dishwasher safe.
  • Price: $15
Buy it here
blue and silver thermos container

Thermos Funtainer

Features & Price

  • Holds 10 ounces (about 1.5 cups) of food.
  • Keeps hot for up to 5 hours.
  • Keeps cold for up to 7 hours.
  • KID-FRIENDLY.
  • Easy to fill and eat out of.
  • Dishwasher safe.
  • Solid colors & characters.
  • Price: $15
Buy It Here
Thermos for lunch

If you’re relatively new to packing lunches inside a thermos container, read this post that explains how long food stays good in a thermos.

Stanley Classic

Features & Price

  • Holds 18 ounces (2+ cups) of food, perfect for bigger appetites!
  • Keeps hot for up to 12 hours. 
    This is the best-performing container in our tests.
  • Keeps cold for up to 12 hours.
  • Lifetime warranty.
  • Deeper than most thermoses.
  • Dishwasher safe.
  • Stainless steel color only.
  • Price: $22
Buy it Here
silver stanley thermos

Lunchbots Wide-Mouth

Features & Price

  • Holds 16 ounces (2 cups) of food, perfect for bigger appetites!
  • Keeps hot for up to 5 hours.
  • Keeps cold for up to 5 hours.
  • The wider opening is easier to eat out of.
  • The wider opening = harder to open & close for smaller hands.
  • Handwash only.
  • Comes in 4 colors.
  • Price: $32-$36
Buy it Here
lunchbots thermos

Watch this video to see my favorite hot food thermoses for kids reviewed and in action!

Lunchbots Thermal Food Jar

Features & Pricing

  • Holds 16 ounces (2 cups) of food, perfect for bigger
  • Triple-wall insulation is perfect for hot and cold foods.
  • Keeps hot for up to 6 hours. 
  • Keeps cold for up to 16 hours.
  • Dishwasher safe.
  • 3 colors.
  • Price: $18-20
Buy it Here
lunchbots thermos container

Mira Food Jars

Features & Pricing

  • Available in 9oz and 14oz (1 cup & 1 ¾ cups).
  • Perfect for kids of all ages.
  • KID-FRIENDLY & easy open.
  • Keeps hot for 5 hours.
  • Keeps cold for 10 hours.
  • Comes in a variety of colors.
  • Price: $15-$18
Buy it Here
blue mira thermos

Thermos Lunch Box: All-in-One

Tired of sending multiple containers in the lunch bag? This thermos lunchbox has it all! Compartments and a built-in thermos container kids love.

Omiebox Hot & Cold

Features & Pricing

  • All-in-one lunchbox with a built-in thermos.
  • Keeps food hot up to 4 hours.
  • Ultimate flexibility for packing cold and hot foods in the same lunch.
  • It can be used with or without the thermos insert.
  • Handwash & dishwasher safe.
  • Perfect for younger kids.
  • Price: $45
Buy It Here
yellow and orange omie lunchbox

Check out our top lunch boxes comparison

101 Packed Lunches eBook

All my best kid-friendly lunches from over a decade of creating meal plans. Add some variety to your child’s lunchbox with these epic lunches, plus receive my Pack Meals Like a Pro ebook, free with purchase!

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Keeping Food Hot for 7 Hours

If your food is not staying hot in the thermos container for more than 7 hours or until lunchtime, make sure you are using the thermos to its full potential.

by Laura Fuentes
onAugust 26, 2022

If you enjoyed the article, please share it with others. Thank you!

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  1. Amanda says

    September 09, 2020 at 10:19 am

    Hi! Regarding the Lunchbots thermos: I love it! My daughter has already used it for two school years (kindergarten and grade 1) and it is in great condition. She did not find it hard to open (even with little kindergarten hands). I just make sure that I do not twist the lid on too tightly. I fill with boiling water for a minute, dump out the water and then add the hot food and it is still nice and warm for lunchtime. I also very often put yoghurt in there. While the manufacturer’s instructions may say not to put in dishwasher you definitely can put the bottom piece in. I do it all the time and as I mentioned, it is in great condition. I hand wash the top piece, but that’s just a flick! I think I will actually order the size up (1 1/2 cups) for my grade 2 daughter now, and give the smaller 1 cup one to my little one starting kindergarten.

    Reply
    • SHUMAILA says

      October 19, 2020 at 9:38 am

      Hi
      Which lunchbox exactly you bought for your daughter?

      Reply
  2. doris hall says

    September 18, 2019 at 5:58 am

    thank you for the imformation about the thermos but you had a picture of a thermos made or shape like a cup where do you buy that one. Please e-mail me

    Reply
    • MOMables - Laura says

      September 20, 2019 at 3:58 pm

      Hi Doris, unfortunately, this particular thermos has been discontinued. A close 2nd would be the Thermos Funtainer: http://bit.ly/ThermosFuntainer.

      Reply
  3. Amanda Buchko says

    August 09, 2019 at 3:32 pm

    What is your favorite lunch bag that will accommodates these thermoses, a drink and a snack? The lunch boxes my kids have are the regular rectangle ones and they are not deep enough.

    Reply
    • MOMables - Laura says

      August 20, 2019 at 4:45 pm

      Hi Amanda, we like to use these from Easy Lunchboxes. Hope this helps!

      Reply
  4. Kavitha Sivakumar says

    February 18, 2019 at 11:38 pm

    Hi Laura,
    I’m looking at the Lunchbots insulated container. Does this one have to be pre-heated with boiling water to keep food hot? Or, does it keep food hot for 5 hours without pre-heating?

    Reply
    • MOMables - Laura says

      May 19, 2019 at 12:18 pm

      Some people preheat it while others don’t. Preheating warms up the wall space (insulated air space) in a thermos but we didn’t find that it significantly held the temperature longer.

      Reply
  5. Mina says

    June 19, 2018 at 11:29 am

    Do you have recommendations for thermos lunch containers that are more rectangular/square shape? I often pack hot sandwiches, quesadillas, and other “larger” items that have to be shoved into the round containers and then to pry them back out, they get all smooshed and my kid wont eat it.

    Reply
    • MOMables - Laura says

      June 20, 2018 at 6:54 am

      Mina, unfortunately, I have not come across a square thermos. I wish!

      Reply
  6. Suet Horhota says

    October 18, 2017 at 7:57 pm

    Hi Laura,

    I’ve been searching forever for a kids thermos that can hold warm liquids with a straw for the winter months but can’t seem to find anything. Do you have any reviews on that? TIA!

    Reply
    • MOMables - Laura says

      October 21, 2017 at 11:29 am

      The only thermoses with a straw are drinking thermoses but thicker items like soups won’t go through the straw. If you just need something for both check one like this out.

      Reply
  7. Christel says

    October 09, 2017 at 8:33 pm

    Hi how do I keep my kids chicken nuggets from getting soggy inside one of these thermos

    Thanks

    Reply
    • MOMables - Laura says

      October 10, 2017 at 10:35 am

      Hi Christel, anything you put in a thermos that isn’t a soup or pasta or rice, for example, is going to change its texture due to the condensation that forms inside.

      Reply
    • Aurora says

      June 19, 2019 at 9:34 am

      put a dry folded up piece of paper towel at the bottom of the container before you put in the nuggets. They don’t necessarily stay crispy, but it does help w/ the sogginess.

      Reply
      • MOMables - Laura says

        July 10, 2019 at 1:29 pm

        Great tip, Aurora!

        Reply
      • Andrea G says

        August 05, 2019 at 12:02 am

        A piece of toast/bread at the bottom will absorb the steam and reduce the sogginess.

        Reply
      • Adrian says

        March 19, 2021 at 10:51 am

        I have wrapped the chicken nuggets in a paper towel and then in foil before putting them in the thermos. They do stay warm, just not the crunch that he likes at home.

        Reply
  8. Isabelle says

    October 06, 2017 at 2:28 pm

    Hi, I am looking for a way to bring warm grilled cheese sandwiches to school for my kid’s lunches. I tried stuffing them in a thermos but it’s just not the same. Any ideas?

    Reply
    • MOMables - Laura says

      October 07, 2017 at 4:30 pm

      Hi Isabelle, I made a video a while back that answers this same question. You’ll never be able to pack a hot sandwich and expect it to keep the crisp texture in a thermos or container, but here is how I do it.

      Reply
      • Kate says

        August 24, 2020 at 11:26 pm

        Hi , I am looking for the thermos cup you have on the pictures above! The red and green ones with handles, I can’t read the brand but it says something like alladin. I’ve been looking for a square thermos ideally but of course there isn’t any that will hold food hot , just metal lunch box containers. This cup is something I would really like to get but I can’t find it anywhere. Please help!

        Reply
        • MOMables - Laura says

          September 08, 2020 at 9:25 am

          Hi, unfortunately, square thermoses do not exist. I will be updating this post with another thermos since the Aladin is no longer available.

          Reply
      • Adrian says

        March 19, 2021 at 10:47 am

        Hi. I just watched your video on the sandwich. You said if you close the lid while it’s warm it’ll be soggy. So if you don’t close the lid to prevent it from being soggy, will it still be warm?

        Reply
        • MOMables-Laura says

          March 19, 2021 at 2:44 pm

          Hi Adrian, it will be at room temperature but this ensures a non-soggy sandwich.

          Reply
  9. katrina says

    October 03, 2017 at 8:06 am

    My child does not like her food touching. trying to find a thermos (keep warm) container that would have two to three compartments (kind of like a bento box, but insulated). So far had no luck… Any ideas? Thank you

    Reply
    • MOMables - Laura says

      October 05, 2017 at 11:19 am

      Unfortunately, this type of thermos does not exist. :( You could check out the Omie Box, but only one compartment is insulated.

      Reply
    • anon says

      January 06, 2018 at 4:29 pm

      it wouldn’t be compartments like a bento box, but perhaps the zojirishi mr. bento (or something similar) would would work? it’s an insulated food jar with individual bowls that stack inside.

      Reply
      • MOMables - Laura says

        January 07, 2018 at 4:43 pm

        I’m familiar with Zo’s storage units and they work great. However, I don’t recommend them because they don’t tend to fit standard lunch bags here in the United States.

        Reply
  10. Fiona says

    September 05, 2017 at 3:22 pm

    Great round up!

    I noticed on the first three you didn’t put”leak proof”. Was that an oversight on those or did they lack I’m your tests?

    My little fellas get into write a I lot of messes. I have to do what I can where I can making those last two leaders for me here.

    Thanks for these reviews and your reply :)

    Reply
    • MOMables - Laura says

      September 06, 2017 at 1:21 pm

      yes, completely an oversight. ALL of the thermos containers I recommend are “leak proof”. happy lunch making!

      Reply
    • Adrian says

      March 19, 2021 at 10:49 am

      I have a question regarding a container to keep my sons food warm longer than 5 hours. I was thinking about getting a Swell snack container or a Yeti and then I saw a review for the Stanley kids container. Do you have any suggestions? My son says that his thermos doesn’t keep it very warm, so he doesn’t eat much at all.

      Reply
      • MOMables-Laura says

        March 19, 2021 at 2:48 pm

        Hi Adrian, I have not tried these two containers but I do know the Stanley and other options in this post are durable and keep food warm for 5+ hours. These are the options I’ve tried and used for years.

        Reply
  11. Amy says

    March 13, 2017 at 11:31 am

    Perfect timing! I needed to research the perfect thermos to send hot food in oour kids’ lunchboxes. Now it’s done for me. Yea!

    Reply
    • MOMables says

      March 14, 2017 at 10:07 am

      I’m so glad this helped Amy!

      Reply
laura fuentes momables holding a lunch bag and lunch boxes

My name is Laura Fuentes
I’m here to help you simplify school lunches with fresh ideas your kids will actually eat.

Mom of 3. Certified in Integrative Nutrition. 5x Cookbook Author.

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