I left out a casserole all afternoon by accident. Won't reheating the dish kill food borne bacteria?
You are correct that reheating will kill food borne bacteria. However, some bacteria produce poisons that are not destroyed by cooking. These poisons are produced when a food is left out at room temperature for an extended period of time. It is not safe to consume foods that have been at room temperature for more than two hours. To be safe, refrigerate foods as soon as possible after preparation.
Shannon Crosby, Dietetic Intern,
Missouri Department of Health and Senior Services
Last update: Tuesday, May 05, 2009