Starbucks Food Safety Practice Exam

Which of the following is NOT an acceptable method for thawing frozen foods?

1. Refrigerating them

2. Placing under cold running water

3. Thawing at room temperature

4. Using a microwave oven with continuous cooking afterwards

The correct answer is: Thawing at room temperature

Thawing at room temperature is not an acceptable method for thawing frozen foods due to the risk of foodborne illness. When food is left out at room temperature, the outer layer can reach temperatures that allow bacteria to multiply rapidly while the inner portion remains frozen. This can create an environment conducive to the growth of harmful pathogens, thus increasing the risk of foodborne illness. In comparison, other methods like refrigerating, using cold running water, or microwaving are considered safe. Refrigerating allows food to thaw slowly at safe temperatures, inhibiting bacterial growth. Placing food under cold running water also helps to safely defrost food by ensuring that it stays at a temperature above freezing but below the danger zone for bacterial growth. Using a microwave oven, provided that the food is cooked immediately afterwards, prevents bacteria from developing by ensuring thorough cooking of the food shortly after thawing.