What should be done if a food thermometer gives inconsistent readings?

When a food thermometer gives inconsistent readings, the proper course of action is to calibrate it or replace it entirely. Calibration ensures that the thermometer provides accurate measurements by aligning it with a known standard, such as the freezing or boiling point of water. This process can help identify if the thermometer has drifted from its accurate readings and is essential for maintaining food safety, as the correct temperature is critical in preventing foodborne illnesses.

If the thermometer cannot be calibrated successfully or continues to provide inconsistent readings after calibration, replacing it is necessary to ensure reliable temperature measurement. Accurate readings are crucial when cooking and holding food items, as they help in determining doneness in cooking and monitoring safe holding temperatures. Hence, having a functional and properly calibrated thermometer is fundamental for food safety practices.