We conducted various cook tests on 6 kilo Butterball Stuffed (cook from frozen) Turkeys to determine causes for
variances in cook time. The starting temperature for all turkeys was 0F and the done temperature was 165F in the
center of the stuffing and 180F deep in the thigh.
Foil cover: 3 hours Increased Cook Time Tightly covering your six kilo Stuffed Turkey in foil adds an unbelievable
3 hours to the roasting time. The foil blocks air flow around the turkey significantly increasing the roasting time
Disposable foil pan: 1 - 1¼ hours Increased Cook Time
Using a disposable foil pan to roast your six kilo stuffed turkey adds one hour to the cook time. If you place the foil pan on a cookie sheet to provide stability another 15 minutes cook time is needed.
Low oven temperatures: 1¾ hours Increased Cook Time
Even though the dial is set at 325°F your oven may not reach that temperature. A six kilo frozen Stuffed Turkey cooked at 300°F requires 1¾ hours more time than shown on the chart. An inexpensive oven
thermometer can be used to check the accuracy of your oven.
Type of roasting pan: 1¼ hours Increased Cook Time
Using a stainless roasting pan or stainless lasagna type pan increases the cook time of a six kilo turkey by 1¼ hours as this type of pan does not conduct heat in the same manner as a dark roasting pan.
Frequent checking: 1¼ hours Increased Cook Time
Opening the oven door every 15 minutes to check on the turkey allows so much heat loss that an additional 1¼ hours is needed to bring the six kilo turkey up to a safe temperature.