Organic Turkey: Cook It Your Way! (Part 1) No matter how you cook your organic turkey, use a food thermometer to ensure the bird and stuffing reach a safe minimum internal temperature of 165°F. Check the internal temperature in the innermost part of the thigh and wing and the thickest part of the breast. For reasons of personal preference, you may choose to cook turkey to higher temperatures.     These times are approximate and should always be used in conjunction with a properly placed thermometer. Approximate Whole-Turkey Cooking Times (Fresh or Thawed in a Preheated 325°F Oven) · 8 to...