When cooking steak there are degrees of doneness, Blue 110°F (43ºC), Rare 120-127ºF (49-53ºC), Med-Rare 129-134ºF (54-57ºC), Medium 136-141ºF (58-61ºC), Med-Well 143-149ºF (62-65ºC), Well-Done 151ºF and above (66ºC and above).