What a great food jar. I was skeptical as to see if this would truly keep food/drink at temperature. Well it really does! Soup, chili, hot beverage? This jar will keep it hot for hours. Placed in jar place both tops and take with you where you need to. With hot items there is a red button on second lid to press to release some of that hot pressure before opening. Food is still perfectly warm. Curiosity with cold items, I quickly tried with cold water. Left in for about five hours and remained just as cold as when I put it in the jar. This jar will be perfect for those got lunches. Small amount of beverages. Cold items, I'm thinking yogurt, applesauce, sauces.... excited with this jar. Shook around with water inside, flipped on its side, no spilling/leaking. Also for the topping on the cake, dishwasher safe.