How long can cooked hamburger sit out?
Potentially hazardous food, such as cooked hamburger, should be left at room temperature for no more than 2 hours or one hour if the ambient temperature is very warm. At that point, the food should be refrigerated or reheated.
The weight of a cooked hamburger depends on several factors, including the pre-cooked weight (i.e., the size of the hamburger patty), the percentage of fat in the ground beef, and how well done the hamburger is cooked. The weight of a hamburger as listed on a restaurant menu is almost always the pre-cooked weight.
Possibly. If the hamburger was cooked in something caloric, say, fried in a pan on the stove top with oil, the cooked hamburger could possibly have more calories, especially if it was a relatively lean patty to begin with. Your cooked hamburger would have most of the calories of the raw patty plus that of the oil