Q. How long can you keep a casserole set warm in the oven?

Answer

To hold most hot items safely, a preheated oven of 200 to 250 degrees Fahrenheit is usually sufficient for 15 to 20 minutes, which is useful if anyone is cooking many dishes with varying completion durations. Beyond that time, use a food thermometer often to make sure the meal is still at 140 degrees Fahrenheit or higher. If the oven temperature is too low, turn it up. The quality of food may suffer if it is kept heated for too long (more than a couple of hours). When stir-frying in batches, place cooked items in the oven to keep warm until all ingredients have been cooked.