Before we dive into the details, let's cover the basics - a stuffed turkey typically takes longer to cook than an unstuffed one, because the stuffing absorbs some of the heat. This means you'll need to factor in some extra time to make sure everything is cooked to a safe internal temperature. Think of it like trying to heat up a big, dense brick - it's gonna take a while.
Now, when it comes to cooking time, there are a few things to consider - the oven temperature, the altitude you're at, and whether or not you're using a convection oven. Generally speaking, a stuffed 19-pound turkey will take around 4-4 1/2 hours to cook in a standard oven at 325°F (165°C). But, if you're using a convection oven, you can shave off about 30 minutes to an hour - that's like getting a free hour to chill out while your turkey cooks.
