We followed the directions stating 10 mins per pound. We had 12 lb turkey and after three hours we still had some undercooked parts, mainly the bottom half of the turkey. We ended up putting it in the oven to cook the rest of the way. A couple days later we tried a 9lb turkey but we left the lid on the entire time thinking maybe that will help. SAME PROBLEM!  We have made ribs and they turn out great but we won't be making a turkey with this again.