How long does it take to cook a 13.5lb turkey without an oven bag and at what temperature?

It's impossible to give you a precise cooking time without knowing more about your oven and the turkey itself. However, here's a guide to help you estimate:

General Cooking Time:

* Unstuffed Turkey: Plan on approximately 3-4 hours for a 13.5lb turkey.

* Stuffed Turkey: Add an extra 30 minutes to the cooking time.

Temperature:

* Always cook your turkey at 325°F (165°C). This is the recommended temperature for ensuring safe and thorough cooking.

Factors That Affect Cooking Time:

* Oven: Different ovens heat differently. Your oven's efficiency and temperature accuracy will impact the cooking time.

* Turkey Shape: A turkey with a more compact shape will cook faster than one with a more elongated shape.

* Stuffing: Stuffed turkeys take longer to cook because the stuffing traps heat.

* Elevation: Higher altitudes may require slightly longer cooking times.

Important Notes:

* Use a meat thermometer to check for doneness. The turkey is fully cooked when the internal temperature reaches 165°F (74°C) in the thickest part of the thigh, without touching bone.

* Rest the turkey for 20-30 minutes after cooking before carving. This allows the juices to redistribute, resulting in a more flavorful and moist turkey.

Here's a helpful tip:

* Use a roasting rack. This allows for better air circulation around the turkey, promoting even cooking.

Remember: It's better to err on the side of caution and slightly overcook the turkey than undercook it. A slightly dry turkey is still edible, but undercooked turkey can be dangerous.