KOPOK Containers for hot food, soup vessel, Insulated Lunch box Container Hot Food Jar Stainless Steel Vacuum Bento with Spoon for Office Travel Outdoors (Black(2 Pack))

Bought these on a whim to use for camping/road trips. I got 2 for the price of one and different sizes. You can tell the metal is thinner and may not hold up to serious use, but they work for now. Also, the temperature duration appears to be about right. The food won’t be hot but it will be warm enough to eat.

Does what it's supposed to do. Sturdy and easy to use. Very affordable price. Keeps the food warm for at least 6 hours.

These are great. It keeps food hot and my son’s lunch is always hot when he eats it. They are easy to clean as well. The top is hard to get off sometimes though.

Works well for liquid lunches (i.e. soup, drinks). The carrier is great for attaching to a backpack via carabiner .

I have tried several times to take hot soup to work for lunch. these have failed every time even after I prewarmed them with hot water. there cannot possibly be a vacuum inside these containers.