Unfortunately, it has no ability to keep the coolness even for a few hours. That is, the container and the food stay in the refrigerator all night. After about 3 hours at a temperature of about 28 degrees Celsius and in the shade, the coolness is lost. Things improve somewhat if you put an ice pack from the freezer inside, but this takes up space in the container and also causes condensation on the items. On the positive side, it is a relatively well-made container.