Best answer: How long does cooked hamburger last out of fridge?
Cooked hamburgers, like any other perishable food, should not be left at room temperature for more than two hours. The USDA recommends discarding any leftover cooked hamburgers that have been left out at room temperature for longer than two hours or one hour if the temperature is above 90°F. This is because bacteria such as Salmonella, E. Coli, and Listeria thrive in warm and moist environments, and can rapidly multiply on cooked hamburger meat, increasing the risk of foodborne illness. To ensure food safety, it’s best to refrigerate or freeze cooked hamburgers promptly after cooking to prevent bacterial growth.
