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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🥄 Keep your lunch game strong, wherever hustle takes you!

COMPACT STYLISH - Matte blue stainless steel jar fits perfectly in your bag or desk, combining function with modern aesthetics.
DRY CONFIDENT GRIP - Sweat-proof exterior ensures your hands stay dry and secure, perfect for on-the-go professionals.
WIDE MOUTH CONVENIENCE - Effortlessly fill, eat, and clean with a spacious opening designed for busy lifestyles.
ALL IN ONE MEAL SOLUTION - Includes a full-sized folding stainless steel spoon—ditch disposable cutlery and stay eco-chic.
ULTIMATE TEMPERATURE LOCK - Thermos vacuum insulation keeps your meals hot or cold for hours—no compromises on flavor or freshness.

The Thermos 16 Ounce Stainless Steel Food Jar features advanced vacuum insulation technology to maintain your food’s temperature for hours. Its sweat-proof matte blue exterior ensures a dry, secure grip, while the wide mouth design makes filling, eating, and cleaning effortless. Complete with a full-sized folding stainless steel spoon, this compact 473 ml jar is the perfect stylish and practical companion for busy professionals seeking fresh meals on the move.

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Manufacturer	Thermos
Part Number	SK3000PBT4
Product Dimensions	9.4 x 9.4 x 14.22 cm; 370 g
Item model number	SK3000PBT4
Size	473 ml
Colour	Matte Blue
Style	Jar
Material	Stainless Steel
Pattern	Solid
Item Package Quantity	1
Number of Pieces	1
Special Features	Stackable
Included Components	Folding stainless steel spoon
Batteries Required?	No
Item Weight	370 g

Thermos 16 Ounce Stainless Steel Food Jar, Matte Blue

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