How Long To Cook A 20lb Turkey At 300 Degrees. There are many ways to slow roast a turkey some requiring an overnight roast and others requiring hours according to the weight of the bird but to slow roast a turkey at 300 degrees fahrenheit it takes more time than either roasting a spatchcocked turkey which takes less than two hours or conventionally roasting it at a higher temperature. So to properly defrost a 20 pound turkey plan for between 5 and 6 days for a fully thawed bird.
Herbs lemons and onions give your turkey flavor and keep it moist. Narragansett bronze white holland and bourbon red. 2 hours 18 lbs.
Remove the turkey from the refrigerator.
Insert the thermometer into the bird between the breast and thigh being sure not to hit bone. I cooked the turkey on 200 degrees. That way you ll know for sure if and when your turkey is ready. So to properly defrost a 20 pound turkey plan for between 5 and 6 days for a fully thawed bird.