How big a pan for 21 lb turkey?

You'll need a roasting pan that's at least 18 inches wide by 12 inches deep to comfortably accommodate a 21 lb turkey.

Here's why:

* Size matters: A pan that's too small will crowd the turkey, preventing even cooking and potentially causing it to stick.

* Depth is key: The turkey needs enough room to sit on the pan's bottom with ample space above it for the heat to circulate.

* Allow for shrinkage: Turkeys shrink during cooking, so it's best to err on the side of a bigger pan.

Important Note: Many larger turkeys come with a roasting bag, which helps with even cooking and can be used in a slightly smaller pan. Check the bag's instructions for recommended pan size.