

🥄 Keep lunch fresh, fun, and fuss-free—because every kid deserves a Thermos that works as hard as they do!
The THERMOS FUNTAINER 10oz Insulated Food Jar combines advanced vacuum insulation to keep meals hot for 5 hours or cold for 7 hours with a kid-friendly, durable stainless steel design. Featuring a push-button lid and integrated foldable spoon, it’s lightweight and easy for kids to use independently. Dishwasher safe with a wide mouth for easy filling and cleaning, this food jar is a trusted mealtime companion backed by Thermos’ 120-year legacy.








| ASIN | B08NWCSTWR |
| Age Range (Description) | Kid |
| Brand | THERMOS |
| Capacity | 10 ounces |
| Closure Type | Snap |
| Color | Black |
| Customer Reviews | 4.7 4.7 out of 5 stars (26,493) |
| Date First Available | December 1, 2020 |
| Department | unisex-adult |
| Global Trade Identification Number | 00041205751441 |
| Included Components | kids food jar with spoon |
| Item Form | round jar |
| Item Weight | 4 ounces |
| Item model number | F3100BK6 |
| Manufacturer | Thermos |
| Material | Stainless Steel |
| Number of Compartments | 1 |
| Number of Items | 1 |
| Number of Pieces | 1 |
| Pattern | Solid |
| Product Care Instructions | Dishwasher Safe |
| Product Dimensions | 3.5"L x 3.5"W x 5.3"H |
| Recommended Uses For Product | School |
| Shape | Round |
| Special Feature | Vacuum Insulated |
| Style | Food Jar |
| Theme | Food |
| UPC | 041205751441 |
| Unit Count | 1.0 Count |
S**.
Best soup thermos that keeps food warm for hours!
These thermos are perfect for kids! I have two kids in elementary school and they're able to open and close these on their own. It also comes with a foldable spoon under the lid. I like packing soups in here--I just warm it up in the morning, put it in the thermos, and my kids get a warm lunch a few hours later. It's really easy to clean and the nonslip grip at the bottom is a plus. It's important to note that this is stainless steel and non toxic.
A**R
Good product
Pros: sturdy, safe, durable ,well insulated and keeps food warm for 3-4 hours , available in variety of colors, small spoon attached . Cons : could be hard to open for younger kids if closed too tight. Food does accumulate on the inner rim of the lid but can be cleaned by soaking in soap for an hour to sanitize. Overall very pleased with the purchase and will buy again.
C**L
Great Thermos
We use this thermos for my son's school lunch several times per week. It keeps his food warm, he can open it, and I love that it has a spoon. It's the perfect size for a lunch box.
J**Y
Great for School Lunches Without a Microwave
1. First Impressions We got this Thermos Funtainer for our child’s school lunches since there’s no access to a microwave, and it’s been a lifesaver. The size is perfect for a single portion, and the purple color is fun and kid-friendly. 2. Product Performance This jar does exactly what it promises—it keeps food warm from early in the morning until lunchtime. I prep it around 7 AM and when my child eats around 12 PM, the food is still hot. A tip that’s really helped: fill it with hot water for a few minutes before adding the food, then empty and add the meal. It really improves heat retention. The included foldable spoon is a great bonus and fits right into the lid. 3. Pros Keeps food warm for 5+ hours Compact and fits easily in lunch bags Built-in foldable spoon is super convenient Easy to clean and kid-friendly design 4. Cons None so far. Just be sure to pre-warm it for best results. 5. Final Thoughts If your child’s school doesn’t allow microwave access, this is a must-have. It’s durable, functional, and makes it easy to send hot meals from home without worry. Highly recommend for soups, pasta, mac and cheese, or even chicken and rice.
S**N
Stays Hot, Stays Cold, Stays in One Piece (Mostly)
Lunchbox lifesaver! Keeps soup hot and yogurt cold until lunchtime, fits perfectly in kids’ lunch boxes, and is super easy to clean. Lid still pops and seals great after a year. Only flaw? The little folding spoon broke fast—but not a dealbreaker since we use our own. Cute colors, tough enough to survive drops, and kid-approved!
L**M
Excellent design and durability
Fantastic product. It keeps food hot or cold for hours, and the metallic exterior looks sleek and modern. It’s durable, even after many dishwasher cycles, and the included folding spoon is a great bonus that keeps my regular spoons from disappearing. Excellent quality and value.
R**L
Perfect for My 3rd Grader!
I got this THERMOS FUNTAINER Insulated Food Jar for my 3rd grader, and she absolutely loves it! It keeps her food warm for lunch, and the size is just right for a kid-friendly portion. 🍲 Keeps Food Hot or Cold for Hours – This jar really works! Soups, pasta, and mac & cheese stay warm until lunchtime, and yogurt or fruit stays cold. No more complaints about lukewarm meals! 🥄 Convenient & Kid-Friendly – The foldable spoon is a great addition, and it fits neatly inside the lid. My daughter loves that she doesn’t have to bring an extra utensil. 🎒 Perfect Size & Leak-Proof – At 10 ounces, it’s just the right portion for a school lunch. It’s lightweight, easy to open, and doesn’t leak—great for tossing into a lunchbox without worrying about spills. 💜 Cute & Durable – The purple color is adorable, and the stainless-steel design is tough enough to handle daily use. We’ve had zero issues with dents or scratches. This THERMOS FUNTAINER is a must-have for school lunches! It keeps meals at the right temperature, is easy for kids to use, and is super durable. My daughter loves it, and so do I! Highly recommend!
M**N
Perfect Thermos for School Lunches
This thermos is ideal for sending a hot lunch to school. It’s lightweight, easy for kids to carry,very roomy and keeps food warm for hours. The quality is excellent, the bright designs make it fun for children, and the price is much better than in stores. I highly recommend it to any parent who wants their child to enjoy a hot homemade meal at school.
V**S
Délai non respecté, très décevant. Le produit est sûrement top, le vendeur non
G**A
Passou no teste! Coloquei água quente as 14h e as 19h ainda estava quente! Não descartei a água e deixei até as 23h, a água permaneceu quente, tinha perdido um pouco da temperatura mas ainda estava bem quente. E NÃO VAZOU NADA!!! O ponto negativo é a tampa, se você apertar muito cria um vácuo e fica muuuuito difícil pra abrir! O ideal é deixar a fechadura alinhada ao nome da marca impresso no pote. Mesmo que você fique tentado a apertar mais, com medo de vazar, não aperte! Não vaza fechando dessa forma e não fica difícil de abrir!
I**A
Exactly as I expected it to be
N**A
Good condition!
R**N
Our boys were getting sick of ham and cheese sandwiches for school lunches day in day out, so thought we'd give these a go. They keep nuggets, hotdogs, spring rolls, pies, quiches, etc warm all morning from 8am-1pm lunch time. Trick is to fill them with hot water for a minute first to heat up the thermos, then tip it out and put the hot food in. Now I feel like I'm running a cafe though, with different lunch orders every morning, but at least they're eating it all! Perfect size too.
Trustpilot
2 months ago
2 months ago