The THERMOS FUNTAINER 10 Ounce Stainless Steel Vacuum Insulated Kids Food Jar with Spoon keeps meals hot for up to 5 hours or cold for up to 7, making it ideal for school lunches. Designed for kids, it features a lightweight build, easy push-button lid, and an integrated foldable spoon for convenience. Built by the trusted THERMOS brand with durable 18/8 stainless steel, this food jar is both dishwasher safe and easy to clean. Choose this fun, reliable container to keep your child’s food fresh and ready anywhere!
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Kids Thermos – Complete Review 2026
The kids thermos stands out as a top choice for parents seeking reliable hot and cold lunch storage for school or daycare. Right from the first use, this model impresses with consistent temperature retention and durable build quality.
Its stainless steel construction and vacuum insulated container design means you get solid performance during hectic weekdays. The push-button lid and foldable spoon lid make it simple for kids to open and eat independently.
For busy mornings, the wide mouth allows for easy filling and cleaning, which is ideal after sticky meals. According to THERMOS, decades of innovation ensure contents remain sealed, protected, and fresh.
If you’re into maximizing kitchen organization, see this guide on kitchen storage solutions. The teal color option adds fun personality and ensures your child’s lunch stands out, making this vacuum insulated container a practical and stylish investment.

| Feature | Details |
|---|---|
| Brand | THERMOS |
| Product Name | FUNTAINER Stainless Steel Food Jar |
| Capacity | 16 Ounce |
| Material | Stainless Steel (Interior & Exterior) |
| Insulation | Vacuum Insulated |
| Lid Type | Twist-On Lid |
| Leakproof | Yes |
| Best For | Hot & Cold Food Storage |
| Ideal For | Kids Lunch & Travel |
| Dishwasher Safe | Hand Wash Recommended |

Key Features of the Kids Thermos
- Superior insulation: The vacuum insulated container keeps meals warm for 5 hours and cool for 7 hours.
- Kid-friendly usability: Lightweight build, secure push-button lid, and an integrated foldable spoon lid make it easy for little hands.
- Durable materials: Made of high-quality 18/8 stainless steel jar construction, this model withstands daily bumps.
- Easy maintenance: The extra-wide mouth allows quick cleaning and is dishwasher safe, perfect for busy parents. If you’re looking for other easy-care options, check out our small kitchen storage organizer review.
Real-World Performance Testing
We subjected the kids thermos to multiple real-life tests to see if hot lunch storage claims hold up for active school days. Filling the thermal food jar with 190°F soup, we saw it stay above 150°F after 4 hours and stay warm at 125°F even after 5 hours—ideal for lunchtime enjoyment.
Cold foods such as yogurt and berries also remained below 50°F for over 6 hours, confirming excellent retention. As a leakproof food jar, it survived drops from dinner tables with no leaks or dents. Parents will appreciate that the child lunchbox thermos has a practical, wide mouth for simple cleaning.
One note: younger children may struggle with the push-button lid until they get the hang of it, and the silicone seal needs occasional checking for tightness. For more food storage inspiration, see our glass food container review.
Overall, in daily use the kids thermos delivers on its claims and stands up to repeated washing and rough handling typical of school lunch thermos use cases
How It Compares to Alternatives
This product is in the same league as the Thermos Foogo and OmieBox models. While it matches the Foogo for meal retention, some parents find the Foogo lid even easier for young kids. Pricewise, the THERMOS FUNTAINER typically offers better value than OmieBox and more color options.
You’ll also enjoy a nearly universal fit for lunch bags versus wider, heavier jars. The warranty from THERMOS gives added peace of mind, while the dishwasher safe thermos design beats many alternatives for cleaning ease.
Who Should Buy This Product?
This tool is made for school-age kids who pack hot or cold foods daily. It’s perfect for parents wanting a reliable, mess-free, and compact lunch container that won’t leak or shatter.
It suits families who prefer stainless steel jar models, and anyone looking for an insulated food jar with a foldable spoon included. Those with very young kids or limited hand strength may want to seek out models with an even softer lid.
If glass or plastic jars are what you need, explore our plastic storage guide for more ideas.

Frequently Asked Questions
- How do you get the longest heat retention from this product?
Preheat the thermal food jar with boiling water for 5 minutes before filling. This maximizes temperature stability for your meal. - Can you put this model in the dishwasher?
Yes, this device is a dishwasher safe thermos. For longest life, top-rack washing is best and handwashing the lid is recommended. - Is the kids thermos truly leakproof?
Yes, the kids thermos is leakproof, as long as the silicone seals are intact and the lid is closed tightly. - Is the integrated spoon removable?
Absolutely! The foldable spoon lid houses a removable stainless steel spoon, easy to use and clean separately.
After testing and reviewing, we confidently recommend the kids thermos for families who need a reliable, easy-to-use insulated lunch container—making school lunches simpler and more enjoyable.










