A thermos can be a real game-changer for lunchtime at school. With a thermos, you can easily send your child their hot and cold favorites from yogurt parfaits to macaroni and cheese, chicken noodle soup, to pizza rolls. The possibilities are endless – and this review article is here to share which thermoses you should absolutely consider.
Table of Contents
7 Best Kids Thermos’ for Freshness and Convenience (2025 Reviews)
The Best Kids Thermos
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1. Thermos Funtainer
(Best overall — $)
Why it’s great: When you think of the epitome of thermos’ for kids, the Thermos Funtainer immediately comes to mind. This thermos comes with a ten-ounce capacity, the perfect size for little mouths. With a stainless steel interior and exterior, it’s also strong enough to handle any hit or fall (which every parent knows is imperative for kids).
Aside from being strong and the perfect size, the Thermos Funtainer also comes in various fun colors and designs. From Batman to Trolls, mermaids to Minecraft, it’s easy to find a thermos that suits your child’s style
Keep in mind: Sometimes, the interior seal comes out, especially after several uses. The best thing to do is to keep an eye on it and not lose it in the dishwasher. It goes back in with no problems!
Good for: These thermos’ are great for kids, but I’d say they’re best for elementary-aged kids. That’s because they’re on the smaller side (10 ounces) and have fun, kid-friendly designs.
![Thermos Funtainer]()
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2. Simple Modern Summit Kids Thermos Water Bottle
(Best water bottle thermos — $)
Why it’s great: Are you looking for a water bottle thermos rather than a “food” thermos? Look no further than the Simple Modern Summit Kids Thermos Water Bottle. These fun water bottles come in various fun designs and are available in 10, 14, or 18-ounce sizes.
Aside from being adorable and offering several sizes to suit your kiddo’s needs, these water bottles are also ideal because they’re built to last. They’re coated with a durable double finish while the interior is BPA-free and keeps drinks cold for hours. Parents will love the leak-free straw and dishwasher-friendly materials, too!
Keep in mind: The straw can be a little difficult for tiny hands to use, but with a bit of practice and elbow grease, they’ll learn to conquer it in no time!
Good for: Elementary-aged kids that need a reliable water bottle to see them through the school year.
![Simple Modern Summit Kids Thermos Water Bottle]()
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3. DaCool Food Thermos
(Best 16 ounce thermos — $$)
Why it’s great: The 10-ounce Funtainer might not be big enough, especially if you have older children. That’s where the DaCool Food Thermos comes into play. We love it because it’s big with a 16-ounce capacity inside. Not only that, but it comes with a handy folding spoon, so you don’t have to worry about packing an extra one for lunchtime goodies.
Keep in mind: There are only three color options: pink, blue, and black
Good for: Older kids that need a little bit more room in their thermos to keep those bellies full at school.
![DaCool Food Thermos]()
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4. Lille Home Stackable Thermos
(Stackable design — $$$)
Why it’s great: Want to send more than one hot or cold item at a time? How about a combination of both? What’s great about the Lille Home Stackable Thermos is there are three thermoses’ to choose from, all varying in size. Use one, two, or all three with tons of goodies inside.
As a bonus, this stackable thermos comes with a fork, spoon, and lunch bag. So, your child has everything they need to get filled up at snack and lunch. Do some fruit and yogurt in the top two for snack and go for soup, ravioli, macaroni, or another fave in the larger third thermos.
Keep in mind: It can be a learning curve to know how to remove each layer of the stackable thermos, but your child should get the hang of it in no time.
Good for: Kids that want more variety in their lunch pail.
![Lille Home Stackable Thermos]()
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5. Omiebox
(Most versatile — $$$)
Why it’s great: There is so much to love about the Omiebox, but the biggest plus is the versatility. The Omiebox comes with a thermos insert so your child can enjoy their favorite hot food favorites from chicken nuggets to fettuccine. If you want to send a cold item, such as a sandwich or cold pasta salad, you can do that, too. Just remove the thermos insert.
Versatility is the name of the game with the Omiebox. There is plenty of space with three separate compartments, and it’s super easy to clean, too. Parents and kids alike are sure to enjoy this stellar box.
Keep in mind: The box is on the small side, so it’s better for younger kids.
Good for: Children in elementary school that want a variety and parents that want the option to send cold or hot food (or a combo).
![Omiebox]()
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6. MIRA Lunch Food Jar
(Bundle of two — $$)
Why it’s great: These MIRA Lunch Food Jars come in a pack of two, which is great for parents with multiple children or those that don’t want to have to worry about cleaning their child’s thermos every single day.
Aside from being a super handy bundle pack, these MIRA Lunch Food Jars are sure to be a long-lasting and reliable thermos your child will love. They are made entirely of food-grade stainless steel with a matte exterior that helps to avoid slips and falls. Each thermos comes with 13.5 ounces of space, which is just the right size for middle schoolers.
Keep in mind: If you overfill this thermos, it could lead to leaking, so just make sure not to fill over the line!
Good for:
![MIRA Lunch Food Jar]()
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7. Chillout Life Insulated Water Bottle
(Best personalized water bottle — $$)
Why it’s great: Every kid enjoys personalizing their items, especially when it comes to school items. That’s why the Chillout Life Insulated Water Bottle made it onto our list. Kids will have so much fun using the stickers to personalize their water bottles.
Parents will love that these water bottles, available in 12 or 17 ounces, are built to last. They’re made of stainless steel and a non-slip silicone sleeve to protect them for years. All of the pieces of dishwasher-safe, making cleanup a breeze for mom and dad.
Keep in mind: The bottom part can come off somewhat easily, so tell your child to ensure they don’t lose it.
Good for: Kids of any age who want to decorate their water bottle and enjoy ice-cold beverages for up to 24 hours.
![Chillout Life Insulated Water Bottle]()
Best Overall
Thermos Funtainer
The Thermos Funtainer is our overall top recommendation. It's the highest quality product we have found with the most affordable price making it the best value on our list..
FAQs about Kids Thermos
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1. Are thermos safe for kids?
Yes, thermoses are safe for kids. As long as you heat the food properly before placing it in the lunchbox, there should be no issues with safety.
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2. How do I keep my lunch warm for school?
A thermos is going to be your best option! To do so, you will need to boil some water and fill the thermos for ten minutes. Then, dump the water out and wipe the thermos clean. Pour your hot foods into the thermos and seal immediately. Viola! Food that stays warm for hours.
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3. Will a hot dog stay warm in a thermos?
Sure! If your child enjoys hot dogs, I recommend sending them in a thermos. However, do not put the bun inside of the thermos with the heated hot dog. This is a recipe for a mushy nightmare. Instead, send the hot dog bun and condiments separately so your child can assemble them while they are at school.
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4. Can you put boiling water in a thermos flask?
Yes, as long as it is made of stainless steel and not glass. (Don’t worry – all of the thermoses on this list are designed using stainless steel materials.) In fact, you are supposed to heat the thermos with boiling water before putting food inside.
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5. What can I put in my thermos for lunch?
The possibilities are truly endless for what you can pack in your thermos for lunch. Some of the favorites in our household include: macaroni and cheese, fettuccine alfredo, soups of any kind, pizza rolls, chicken nuggets and fries, fish sticks, orange chicken and rice, and essentially any leftover.
Keep in mind that the thermos is not limited to hot food. You can also send cold foods, too. We stick our thermos in the freezer the night before. Then, I will send things such as sushi, salad, yogurt parfaits, cold pasta salad, and other items that are better chilled.
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6. Will spaghetti stay hot in a thermos?
Yes, spaghetti will stay hot in a thermos. Just use the boiling technique. Oh, and don’t forget to pack a salad and garlic bread on the side.
Conclusion
A thermos is a great way to expand your child’s lunch options. It is also great for sending hot or cold beverages to school. It’s important to find the thermos that’s right for you, though. A smaller child will likely need a smaller-sized thermos, as a larger one can be overwhelming at school, and they aren’t likely to finish it.
Are you ready to give your child the gift of hot meals at school?
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