When can glass thermometers be used?

Glass thermometers can be used when enclosed in a shatterproof casing because this design significantly reduces the risk of breaking, which poses a safety hazard. The shatterproof casing protects both the thermometer and the user, preventing the potential release of glass fragments and any hazardous contents, especially if the thermometer is used in a high-heat environment or moved frequently.

Using glass thermometers in other scenarios—such as in all cooking processes, strictly for refrigeration, or relying solely on sanitization after use—does not adequately address the safety concerns associated with breakage. Enclosing the thermometer in a shatterproof casing is essential for ensuring that it remains safe to use while accurately measuring temperature, particularly in professional kitchens where safety standards are paramount.