This is my second one, and each time... my meats NEVER reach the desired temperature. Last night I stuck it in my chicken... and waited, and waited. It never got above 160 - and apparently it should be 180. So I broke open the chicken, and it was completely done. This is going to be my first Thankgiving where I cook the Turkey, and I'm using an electric roaster (because it was a gift from an attending family member). I'm worried that I will either under or over-cook this Turkey without being able to measure the temperature. Am I doing something wrong!?