Solano County, California. Solano County is a county located in the U.S. state of California. As of the 2010 census, the population was 413,344. The county seat is Fairfield. Solano County comprises the Vallejo-Fairfield, CA Metropolitan Statistical Area, which is also included in the San Jose-San Francisco-Oakland, CA Combined Statistical Area.
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. Was this answer useful?
The burgers may dry out a little and 3 hours is a long time to have food set out for only 60 people. If you are serving the guests, keep you cooked patties in a pan covered with foil and keep it in a warm oven until you are ready to serve it. Hope that helps. It is what we used to do when I worked caterings.