The USDA Meat and Poultry Hotline has been answering consumer questions related to holiday meals for over 25 years. They get the usual questions about buying, thawing and roasting a turkey. But they also get some of the same not-so-typical questions each year.

How long will it take to cook two turkeys at the same time?

The cooking time is determined by the weight of one bird – not the combined weight. Use the weight of the smaller bird to determine cooking time.

Use a food thermometer to check the internal temperature of the smaller bird first and then check the second bird.

A whole turkey is safe when cooked to a minimum internal temperature of 165 °F as measured with a food thermometer.

Check the internal temperature in the innermost part of the thigh and wing and the thickest part of the breast.

When cooking two turkeys at the same time make sure there is enough oven space for proper heat circulation.

How long will it take to cook a turkey weighing over 25 pounds?

To cook a large turkey use the timetables for turkey roasting for an unstuffed turkey.

Add 10 minutes per pound for turkeys over 24 pounds. Stuffing a turkey over 24 pounds is not recommended.

Make sure you have a heavy pan large enough to hold the turkey. Be sure to make sure there is enough space in the oven for proper heat circulation.

If a turkey has a “pop-up” temperature indicator do I still need to use a thermometer?

Pop-up temperature indicators are constructed from a food-approved nylon. The indicator pops up when the food has reached the final temperature for safety and doneness.

Pop-up temperature indicators have been produced since 1965 and are reliable to within 1 to 2 °F if accurately placed in the product.

But it is also suggested that the temperature be checked with a conventional food thermometer in the innermost part of the thigh and wing and the thickest part of the breast to ensure safety.

Is it safe to cook a turkey from the frozen state?

Yes, it is safe to cook a turkey from the frozen state. The cooking time will take at least 50 percent longer than recommended for a fully thawed turkey.

Remember to remove the giblet packages during the cooking time. Remove the packages carefully with tongs or a fork.

Can I call the Meat & Poultry Hotline on Thanksgiving Day?

Yes. The hotline will be staffed from 8 a.m. to 2 p.m. Eastern Time on Thanksgiving Day. Call them toll-free at 1-888-674-6854. Usual hours are Monday through Friday, from 10 a.m. to 4 p.m., Eastern Time. You can also ask a question in English or Spanish at www.AskKaren.gov, available 24 hours a day.

Diane Van is food safety education staff deputy director, USDA Food Safety and Inspection Service.