Juices should be clear. Place the tip in the thigh muscle just above and beyond the lower part of the thighbone, but not touching the bone. If using an oven-safe meat thermometer, insert it prior to placing the turkey in the oven and leave in while the turkey is roasting. Turn it so it can be read while the turkey is in the oven. If using an instant-read metal stem thermometer, do not leave it in the turkey during roasting.
Many variables can affect the actual roasting time.
These are a few common things done that can lengthen the total cooking time. Other variables include an oven that heats unevenly, inaccurate oven thermostat, rack position and a turkey or pan too large for the oven. As you can see, timing s not everything so use the roasting charts as a general guide and continue to depend on a thermometer properly placed to let you know for sure when the turkey is done. Cooperative Extension programs and policies are consistent with federal and state laws and regulations on nondiscrimination regarding race, color, gender, national origin, religion, age, disability and sexual orientation. Evidence of noncompliance may be reported through your local Cooperative Extension Office.