The turkey should cook at an internal temperature of at least 165 degrees Fahrenheit, and the oven temperature should be at least 325 degrees Fahrenheit. To check the internal temperature, place the thermometer in the innermost part of the thigh or wing and the thickest part of the breast.
In order to assure safety, the USDA recommends purchasing frozen, pre-stuffed turkeys that have a USDA or state mark of inspection. These turkeys have been processed under controlled conditions in order to ensure quality and safety. The packages for these turkeys also have instructions on properly cooking and handling the turkeys to ensure proper preparation.