Meat thermometer the temperature should be at 74 °C (165 °F). For shellfish that are difficult to open, discard any that did not open during cooking. Meat thermometer A meat thermometer or cooking thermometer is a thermometer used to measure the internal temperature of meat, especially roasts and steaks, and other cooked foods. The degree of "doneness" of meat or bread correlates closely with the internal temperature, so that a thermometer reading indicates when it is cooked as desired. When cooking, food should always be cooked so that the interior reaches a temperature sufficient, that in the case of meat is enough
Medical thermometer is placed properly. Allbutt, T.C., “Medical Thermometry”, "British and Foreign Medico-Chirurgical Review", Vol.45, No.90, (April 1870), pp.429-441; Vo.46, No.91, (July 1870), pp.144-156. Medical thermometer A medical thermometer (also called clinical thermometer) is used for measuring human or animal body temperature. The tip of the thermometer is inserted into the mouth under the tongue ("oral" or "sub-lingual temperature"), under the armpit ("axillary temperature"), or into the rectum via the anus ("rectal temperature"). The medical thermometer began as an instrument more appropriately called a water thermoscope, constructed by Galileo Galilei circa 1592–1593. It lacked an accurate scale with which to measure temperature