When can glass thermometers be used?

Glass thermometers can be used for measuring temperature in various applications, such as in laboratories, cooking, and medical settings. They are effective for measuring temperatures in both liquids and solids, provided they are not subjected to extreme temperatures that could cause breakage. However, their use has declined in some areas due to safety concerns and the advent of digital alternatives. It's important to handle glass thermometers with care to avoid breakage and potential injury.