Final answer:
To measure the temperature of food in a display cooler, use a calibrated food thermometer, inserting it into the thickest part of the food without touching packaging or bones, and check multiple spots for consistency.
Step-by-step explanation:
The proper method for measuring the temperature of an open package of food in a display cooler involves using a food thermometer. Ensure that the thermometer is clean and properly calibrated before use. Insert the thermometer probe into the thickest part of the food without touching the packaging, container, or any bones, as this can affect the reading.
The temperature should be checked in several spots to ensure accuracy. According to safety guidelines, refrigerated foods should be kept at or below 4 degrees C (40 degrees F) to prevent bacterial growth. It is crucial to regularly monitor and record the temperatures to ensure that all foods are stored safely.