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?
Never leave ground beef or any perishable food out at room temperature for more than 2 hours â 1 hour at 90 Â°F (32.2 Â°C) and above. In every step of food preparation, follow the guidelines of the Food Safe Families Campaign to keep food safe.an I refrigerate or freeze leftover cooked hamburgers? How should they be reheated? If ground beef is refrigerated promptly after cooking (within 2 hours; 1 hour if the temperature is above 90 Â°F), it can be safely refrigerated for about 3 or 4 days.