Final answer:
The bimetallic stemmed thermometer should be inserted just past the stem, until the dimple in the stem, to obtain a proper reading of the food temperature.
Step-by-step explanation:
The bimetallic stemmed thermometer should be inserted just past the stem, until the dimple in the stem. This ensures that the sensing area at the tip of the thermometer is in contact with the food, providing an accurate reading of the food's temperature. Inserting the thermometer too far or not far enough into the food will result in an inaccurate reading.
Learn more about Using a bimetallic stemmed thermometer to measure food temperature