how do I get the plastic gasket seal that was attatached to lid? lost mine somehow

As of fall of 2016 they were still offering the gaskets. I think I just sent 5 bucks and asked them to send as many gaskets as that would buy. They sent 3 - but not just the gasket but the entire plastic lid as well.

How long many hours will the Thermos keep contents warm? I need to warm the soup, etc and then pack it in a lunch.

Soup and stews stay hot for a long time. I leave to work at 5:30am and have lunch around 1, and it is always hot. When it comes to food that is not liquid or in sauce, like baked fish and veg, it is still warm 7-8 hours later, but not as much as soup and liquids which stay very hot for hours.

I can't decide between two Thermos 16-ounce food jars - the Stainless Steel King or the Stainless Steel food jar (plum or teal colored). Any recommendations on which is better ?

I have the Thermos King and the Thermos Nissan food container, both 16 oz. I don't think you can go wrong with either. Both do a great job of keeping products cold/hot. The Thermos King is a little shorter and wider and the Nissan is slightly taller and narrower. The Thermos King has the lid for the jar (with the fold up spoon) and a stainless steel cap that goes over the lid. The Nissan just has the plastic lid for the jar. The King looks like it might be more insulated (?-guessing here just by the looks and the weight). I have the midnight blue Thermos King and it's a nice color, almost black with a hint of the blue under the light. The Nissan is all stainless steel with a black cap. Regarding the SS Food Jar (plum or teal) I can't say specifically since I do not own this version however, comparing the 2 products I think I would go with the King because it of the 2 lids/caps and the spoon and might be more insulated. The food jar keeps hot for 7 hours and cold for 9 hours. The Thermos King keep food hot for 9 hours and cold for 12 hours.

Is it easy enough for a small child to open it?

The children’s thermoses are easily opened by my kids when they were as young as 6. I didn’t have them when they were 5. But this one would be tougher for a young 6 year old. My 8 year old can do it, and my nearly 7 year old can, also. But the kid ones are easier and you do need to be sure not to tighten them too much for younger kids. We use them weekly and my kids haven’t asked me to open theirs in a long time.

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Description

🥘 Keep it hot, keep it cool – THERMOS has your back!

BUILT TO LAST - Crafted from high-quality 18/8 stainless steel for unmatched durability, perfect for any adventure.
SWEAT PROOF DESIGN - Enjoy a cool-to-the-touch exterior, no matter the temperature inside.
STAY HOT STAY COLD - Experience the ultimate temperature retention with THERMOS vacuum insulation technology.
CONVENIENT SPOON INCLUDED - Folding spoon stored in the lid doubles as a serving bowl for on-the-go meals.
VERSATILE SIZES AVAILABLE - Choose from multiple capacities to suit your lifestyle, from 16 oz to 47 oz.

The THERMOS Stainless King Vacuum-Insulated Food Jar is a 16-ounce container designed to keep your meals hot for up to 9 hours and cold for up to 14 hours. Made from durable 18/8 stainless steel, it features a sweat-proof exterior and includes a folding spoon that fits neatly in the lid. Ideal for both everyday use and outdoor adventures, this food jar is dishwasher safe and available in multiple sizes.

Reviews

Q**.

Keep food warm!

Value for money! beautiful color & Style.

10.09.2025

K**K

I keep buying them

These are great. I’ve purchased 5 of them now - one for each kid - and so far they haven’t disappointed! The size is nice - especially for a lunch (fits in a lunchbox to make it easier to carry) and it keeps food warm for a long time. I haven’t timed it, but it’s definitely long enough to make it to mealtime. It’s easy to open and close - so that makes it easy to use and clean. I like that it comes with the spoon in case you don’t have one handy. Overall I think it’s a great value.

18.02.2025

W**N

Well made

Kids say it keeps their lunch hot enough

7.05.2025

R**R

Best buy

Works perfect

15.08.2025

C**Q

Recommend!!!

I have three of these. This color is definitely my favorite.Keeps food hot for a long time

23.09.2025

A**R

Thermos is great

almost one semester of lunches every day, and all's well. I did buy a spork for those days my lunch is more shabby than spoony. Other Thermoses the paint peeled off, but not this one (so far). Interestingly, they must have just redesigned this, but the screw on to seems to have a pressure valve. the previous year's did not. I don't think it's really mattered. I do prefer the 16 oz - seems to be the sweet spot for thermos size for a teenager's lunch.

3.12.2024

J**U

Nice

With the exception of it being made in China 🥴, perfect size, great little thermos

27.07.2024

M**.

Keeps food for a long time and does not leak.

Love this! Keeps food warm for hours. Great value for money and the food does not leak. I send a lot of soupy food with my child and there never any leaks.

29.05.2025

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Fantastic and great service. Shipping was faster than expected.

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Is the item dishwasher safe?	No
Is the item microwaveable?	No
Product Care Instructions	Dishwasher Safe
Material Type	Stainless Steel
Item Weight	13.4 Ounces
Number of Items	1
Capacity	16 Fluid Ounces
Theme	Food
Color	Matte Powder Blue
With Lid	Yes
Cap Type	Screw Cap
Special Features	Easy

THERMOS Stainless King Vacuum-Insulated Food Jar with Spoon, 16 Ounce, Matte Powder Blue

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