Where is the sensing portion of a bi-metallic stem thermometer located?

The sensing portion of a bi-metallic stem thermometer is located at the dimple and downward. This part of the thermometer is designed to accurately measure the temperature of food or liquids. The dimple marks the zone where the temperature sensing begins, ensuring that the reading reflected on the dial corresponds to what is occurring within the food or liquid being measured. Proper insertion of the thermometer into the food should be done so that the dimple is submerged, allowing for an accurate measurement.

The other locations, such as the tip, base, or near the handle, do not provide an accurate indication of temperature for food items. The tip may be used for shorter range temperature readings, but it does not account for the entire sensing area needed for effective temperature measurement. The base and the area near the handle are not designed for sensing and would yield misleading readings, potentially resulting in improper food handling practices.