In contrast to other cooking techniques, pellet smoking does not need constant supervision and requires little maintenance. The main advantage with pellet smoker grills is to place the prepared unwrapped sweet potatoes on the smoker along with your main dish, insert the thermometer, and close the grill lid. This helps keep your smokers internal temperature constant and the pellet smoke around the grilled foods.  The temperature of the smoked sweet potatoes can be monitored from the out-side of the smoker.