For a 20-pound stuffed turkey, plan on about 4.5 to 5 hours in a 325°F oven. That’s the sweet spot. But don’t just set a timer and walk away—oven temperatures vary like a moody teenager.
Why 325°F? It’s the perfect balance. Too hot, and your bird’s skin burns while the inside stays raw. Too cool, and you’ll be eating dinner at midnight. Yikes.
The Science (But Make It Fun)
Think of your turkey like a giant, featherless sleeping bag. The stuffing is the warm core, but it also slows down heat transfer. That’s why you need to check both the thigh (at least 175°F) and the stuffing’s center (165°F).
Here’s a cool comparison: cooking a stuffed 20-pounder is like running a marathon while carrying a backpack of hot potatoes. The finish line is the same, but the journey takes a bit longer. And honestly? That’s kind of amazing.