This is the first time I have smoked anything that has sat at the same temp forever. I put a 1.5 pound piece of pork loin in at 5:30. Smoker temp at 200. It got to 145 in 2.5 hours. It has been sitting at 147 for 70 minutes now. I even checked with 2 different thermos and both say the same. I did not expect this amount of time for such a small piece of meat.