Which of the following is a step to correctly use a thermometer?

The correct approach to using a thermometer involves ensuring that it is properly calibrated and sanitized before use. Calibration ensures that the thermometer provides accurate readings, which is critical for food safety. If a thermometer is off by even a few degrees, it can lead to undercooked or overcooked food, increasing the risk of foodborne illnesses. Sanitizing the thermometer helps to prevent cross-contamination, especially when measuring the temperature of different food items.

Storing a thermometer in water, painting it, or leaving it out of the food would not contribute positively to its accuracy or hygiene and could lead to inconsistent results or promote the spread of harmful bacteria. Proper calibration and sanitation are essential practices in food handling to ensure safety and compliance with health standards.