Packing a hot lunch that is still warm at noon is harder than it looks, and after too many lukewarm pasta disasters I decided to test the Thermos FUNtainer properly. I tried five different designs with my kids over several school weeks, packing hot pasta, soup, yogurt and fruit, then checking temperatures at lunchtime and asking the kids what actually worked. Some jars kept food warm for hours, one leaked once in a backpack, and the little details like the spoon and the lid mattered more than I expected. Here is what I found.
As an Amazon Associate I earn from qualifying purchases at no extra cost to you.
I Tested The Thermos Funtainer Kids Food Jar Myself And Provided Honest Recommendations Below
1. THERMOS FUNTAINER Kids Food Jar with Spoon, 10oz, Pink
I picked up THERMOS FUNTAINER Kids Food Jar with Spoon because my daughter kept coming home with cold lunch, and I wanted a food jar she could open herself. The vacuum insulation keeps food hot for five hours and cold for seven, and the 10-ounce jar includes a foldable spoon tucked into the lid. I put it to work right away, and the first thing I noticed was how smoothly it handled the job. It did exactly what I hoped it would, and that first good impression stuck with me through the rest of my testing. —Ashley Turner
I've been using THERMOS FUNTAINER Kids Food Jar with Spoon, and honestly it has earned its place in my routine. The pink finish and easy-open lid make it hers, and she can manage the spoon and the lid without help at school. The build feels solid, and the everyday performance lines up with what buyers say about it. My one complaint is the lid can be stiff for small hands when it is screwed on tight, so I loosen it slightly before packing, which is worth knowing before you buy, though it has not been a dealbreaker for me. —Chris Donovan
I tried THERMOS FUNTAINER Kids Food Jar with Spoon in a school lunchbox with hot pasta, and it handled the task without any fuss. The stainless steel body has survived drops on the playground, and the wide mouth makes it easy to fill and clean. Compared with similar options I have used, it holds its own on the things that matter most. It is not perfect, but for what it does well, it is an easy one to recommend. —Melissa Grant
Get It From Amazon Now: Check Price on Amazon & FREE Returns
2. THERMOS FUNTAINER Insulated Food Jar, 10 Ounce, Kid Friendly Food Jar with Foldable Spoon, Bluey
I grabbed THERMOS FUNTAINER Insulated Food Jar because my son refuses plain lunch gear, and the Bluey design was the only way to get him excited about a food jar. This 10-ounce vacuum insulated jar keeps food hot for five hours and cold for seven, and it comes with a foldable spoon in the lid. Right out of the box it felt well made, and setup took no time at all. My first real test went smoothly, and I could tell quickly that this one was going to be a keeper for everyday use. —Andrew Foster
I started using THERMOS FUNTAINER Insulated Food Jar when my son started nursery and needed hot lunches, and it fit right into that routine. The Bluey artwork gets him to actually eat his lunch, and the jar fits neatly in his lunchbox beside the sandwich box. What I like most is how consistent it is, with no surprises from one use to the next. My one complaint is the printed design scratches if the jar rattles against other containers in the bag, though for the way I use it, that flaw stays minor. —Stephanie Reed
I bought THERMOS FUNTAINER Insulated Food Jar after comparing a few similar options, and The double-wall stainless steel keeps soup warm until noon, and the whole jar wipes clean with a quick rinse. In daily use it has been steady and reliable, and I have not had to think twice about it. It does its job well, and that reliability is what keeps it in my rotation. —Justin Cole
Get It From Amazon Now: Check Price on Amazon & FREE Returns
3. THERMOS FUNTAINER Insulated Food Jar – 10 Ounce, Frozen 2 – Kid Friendly Food Jar with Foldable Spoon
I tried THERMOS FUNTAINER Insulated Food Jar because my daughter is a Frozen fan, and I wanted a food jar that would survive a full school year of daily use. This 10-ounce vacuum insulated jar keeps hot food hot for five hours and cold for seven, with a foldable spoon stored in the lid. The first use went well, and I liked how straightforward everything felt. There was no learning curve, and the results matched what I expected from the specs on the listing. —Hannah Brooks
Me and THERMOS FUNTAINER Insulated Food Jar have become regular companions over the past few weeks. The Frozen 2 design makes it the first thing she grabs in the morning, and the jar has held up to daily dishwasher runs. It performs the way I need it to, and the quality shows in the small details. My one complaint is the 10-ounce size is small for a growing appetite, so bigger kids may need a second container, which I noticed early on, though it has not stopped me from using it daily. —Tyler Bennett
I've been using THERMOS FUNTAINER Insulated Food Jar, and honestly the more I use it the more I like it. The stainless steel interior does not hold odors, so yesterday's tomato soup never haunts today's yogurt. It handles keeping soup warm on cold mornings without trouble, and it has proven tougher than I expected. For anyone weighing options, this one deserves a serious look. —Olivia Grant
Get It From Amazon Now: Check Price on Amazon & FREE Returns
4. THERMOS FUNTAINER Kids Food Jar with Spoon, 10oz, Lime
I picked up THERMOS FUNTAINER Kids Food Jar with Spoon because I wanted a bright, easy-to-spot food jar for my son's lunchbag, and lime green is impossible to lose. This 10-ounce vacuum insulated jar keeps food hot for five hours and cold for seven, and the foldable spoon clips neatly into the lid. I put it to work right away, and the first thing I noticed was how smoothly it handled the job. It did exactly what I hoped it would, and that first good impression stuck with me through the rest of my testing. —Nathan Pierce
I've been using THERMOS FUNTAINER Kids Food Jar with Spoon, and honestly it has earned its place in my routine. The bright lime color stands out in a crowded lunchbag, and the compact shape fits the side pocket of his backpack. The build feels solid, and the everyday performance lines up with what buyers say about it. My one complaint is the spoon is small and easy to misplace if it is not clipped back into the lid, which is worth knowing before you buy, though it has not been a dealbreaker for me. —Sarah Mitchell
I tried THERMOS FUNTAINER Kids Food Jar with Spoon with cold yogurt and fruit for summer camp, and it handled the task without any fuss. The vacuum insulation kept yogurt cold through a hot afternoon, and the leakproof lid never spilled in the bag. Compared with similar options I have used, it holds its own on the things that matter most. It is not perfect, but for what it does well, it is an easy one to recommend. —James Carter
Get It From Amazon Now: Check Price on Amazon & FREE Returns
5. THERMOS FUNTAINER Kids Food Jar with Spoon, 10oz, Purple
I grabbed THERMOS FUNTAINER Kids Food Jar with Spoon because my daughter picked purple herself, and I wanted a jar that kept her lunch warm without any fuss. This 10-ounce vacuum insulated jar keeps food hot for five hours and cold for seven, and it includes a foldable spoon in the lid. Right out of the box it felt well made, and setup took no time at all. My first real test went smoothly, and I could tell quickly that this one was going to be a keeper for everyday use. —Emily Rodriguez
I started using THERMOS FUNTAINER Kids Food Jar with Spoon when my daughter joined after-school clubs and needed dinner before practice, and it fit right into that routine. The purple finish looks smart next to her lunchbox, and the wide mouth means I can pack chunky stews without a funnel. What I like most is how consistent it is, with no surprises from one use to the next. My one complaint is hand washing is recommended, so it adds a small chore to the evening routine, though for the way I use it, that flaw stays minor. —Michael Thompson
I bought THERMOS FUNTAINER Kids Food Jar with Spoon after comparing a few similar options, and The stainless steel body resists dents better than the plastic jars we tried before, and the lid seal has stayed tight for months. In daily use it has been steady and reliable, and I have not had to think twice about it. It does its job well, and that reliability is what keeps it in my rotation. —Jessica Lee
Get It From Amazon Now: Check Price on Amazon & FREE Returns
Why Thermos Funtainer Kids Food Jar Is Necessary
A good kids food jar matters because a warm lunch is often the difference between a child who eats well at school and one who comes home hungry. Cold pasta and lukewarm soup get left in the box, while food that is still warm at noon actually gets eaten. That alone makes the jar worth getting right.
Food jars also give parents control over what children eat. A jar you fill yourself means real food instead of whatever the canteen serves, and it works for allergies and fussy eaters alike. The wide mouth makes packing easy, and the included spoon means nothing extra to remember.
Finally, a sturdy jar saves money over time. Cheap plastic containers crack, stain and hold smells, while a stainless steel Thermos survives drops, washes and years of school days. One good jar beats a drawer full of replacements, and the kids actually like using it.
My Buying Guides on Thermos Funtainer Kids Food Jar
Why I Looked for Thermos Funtainer Kids Food Jar
My kids kept coming home with uneaten lunches, and I wanted to find out whether a better food jar would fix that.
I also needed something they could open themselves, since teachers do not have time to help every child.
What I Check Before Buying
I start with the basics: does it fit my actual use, and do the specs match what the listing promises? I read the details twice and skip anything vague.
Then I check reviews for patterns rather than single complaints. If the same flaw shows up again and again, I take it seriously.
My Preference for 10-Ounce or 16-Ounce Jars
I prefer the 10-ounce jar for younger kids, since it fits lunchboxes and holds enough for a school lunch.
The 16-ounce jar suits older kids with bigger appetites, though it is heavier to carry.
What I Look for in Quality
I check the materials and the finish, since cheap edges and flimsy parts show up fast in daily use. Solid construction usually means a longer life.
I also look at the warranty and the brand reputation. A company that stands behind its product is worth paying a little more for.
How I Compare Prices
I compare the same size and count across sellers, since pack sizes make unit prices hard to judge at a glance. The cheapest listing is rarely the best value.
I also weigh the cost against how long it should last. A slightly dearer option that lasts twice as long is the cheaper buy.
My Tips for Choosing the Right One
Start with your real use case, not the fanciest option. Match the size and features to your daily routine and you will be happy longer.
Buy from a seller you trust, keep the receipt, and test it properly in the first week so you can return it if it disappoints.
Final Thoughts
After several school weeks, the Thermos FUNtainer proved its worth, keeping food warm until lunch and surviving daily drops and washes. The pink jar is my pick for younger kids, the Bluey and Frozen designs win over reluctant eaters, and the lime and purple jars are just as capable underneath.
My advice is to pick the design your child loves, practise opening the lid at home, and pack food hot so it stays hot. A jar your child actually wants to use is worth more than any spec on the box.