Don't leave a cooler in a hot car and expect it to keep things cold.

No, not really — at least not for more than a very short window, and certainly not safely.

A cooler slows down heat transfer, it doesn’t stop it. In a car that hits 130-140°F on a summer day, even a high-end rotomolded cooler will eventually equalize with the outside temperature. The ice will melt faster than you think, and food that sits above 40°F for more than two hours is a gamble you don’t want to take.

If you absolutely must leave it, use a ton of ice, keep the cooler out of direct sunlight, crack the windows, and accept that you’re racing the clock. But honestly? Just bring the cooler inside with you or take it home. A few minutes of inconvenience beats a few hours of food poisoning.

Your stomach doesn’t care how much you spent on the Yeti.