The noun RATTLE has 3 senses: 1. a rapid series of short loud sounds (as might be heard with a stethoscope in some types of respiratory disorders). 2. a baby's toy that makes percussive noises when shaken. 3. loosely connected horny sections at the end of a rattlesnake's tail.
Residual Heat or Carry-Over Cooking: Remember, the rib roast will continue to cook as it sets. The internal temperature will rise to 125 degrees F. to 130 degrees F. (medium rare) in approximately 15 to 20 minutes. If allowed to rest as long as an hour, the internal temperature will rise even higher.So, pay attention to how long you let the cooked prime rib roast sit.rime Rib Roast (standing rib roast), at room temperature (very important) 2 tablespoons butter, room temperature. Preparation: Preheat oven to 450 degrees F. Pat the room-temperature standing rib roast (prime rib roast) dry with paper towels or napkins.
1 Leave the prime rib out at room temperature for 2 hours. 2  Preheat the oven to 450 degrees F. 3  When the oven is hot, put the roast in and cook for 20 minutes to sear the outside of the roast. 4  After 20 minutes turn the oven down to 325 degrees F. and roast until the desired internal temperature is reached (see guide below). After 20 minutes turn the oven down to 325 degrees F. and roast until the desired internal temperature is reached (see guide below). 2  For medium-rare this will take approximately 15 minutes per pound. 3  Transfer to a large platter, and let the prime rib rest, loosely covered with foil for 30 minutes before serving.