Can a whole turkey be cooked after being in freezer for 15 months?

It is best to follow the recommended storage times and thawing instructions provided by the USDA or the manufacturer. While a whole turkey might technically still be safe to cook after being frozen for 15 months, the quality and flavor may be compromised, and there is an increased risk of bacterial growth. It is generally recommended to consume frozen turkey within 1 year to maintain its quality.