What must be done if a thermometer is found to be inaccurate?

If a thermometer is found to be inaccurate, the appropriate action is to calibrate or replace it. Calibration is essential because it ensures that the thermometer provides accurate readings, which is critical for maintaining food safety. Inaccurate temperature readings can lead to unsafe food handling practices, such as undercooking food or failing to store food at safe temperatures, which can result in foodborne illnesses.

Replacing the thermometer is also an option if calibration fails or if the device is beyond its reliable use. Maintaining the accuracy of temperature-measuring devices is an important aspect of food safety protocols, especially in environments like McDonald's, where food safety is paramount.

Ignoring the readings or using the thermometer solely for specific types of food would undermine the fundamental purpose of accurate temperature monitoring across all food items. Storing a thermometer in the freezer does not address the issue of inaccuracy and may not support proper calibration practices. Thus, calibrating or replacing the thermometer is the best course of action to ensure ongoing compliance with food safety standards.