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.

ASIN	B0017IFSIS
Best Sellers Rank	#5,646 in Kitchen ( See Top 100 in Kitchen ) #18 in Insulated Food Jars #584 in Coffee, Tea & Espresso
Brand	THERMOS
Brand Name	THERMOS
Capacity	454 g
Closure Type	Screw Top
Color	Midnight Blue
Colour	Midnight Blue
Container Shape	Round
Customer Reviews	4.7 out of 5 stars 35,903 Reviews
Global Trade Identification Number	00041205628309
Included Components	Unit^Instruction Guide
Is the item dishwasher safe?	No
Is the item microwaveable?	No
Item Dimensions L x W x H	9.4L x 9.4W x 7.6H centimeters
Item Form	Jar
Item Type Name	Vacuum-Insulated Food Jar with Spoon
Item Volume	16 Fluid Ounces
Item Weight	227 g
Item height	5.6 inches
Manufacturer	THERMOS LLC
Manufacturer Warranty Description	5 year limited
Material	Stainless Steel
Material Features	dishwasher_safe
Material Type	Stainless Steel
Material Type Free	BPA Free
Material features	dishwasher_safe
Other Special Features of the Product	Alcohol-Free
Package Quantity	1
Product Care Instructions	Hand Wash Only
Product dimensions	9.4L x 9.4W x 7.6H centimeters
Recommended Uses For Product	Camping
Size	Tall
UPC	041205628309
Unit Count	15.8 Ounce

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

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