New York City Food Protection Practice Test

What is a common characteristic of foods contaminated with pathogenic bacteria?

1. Change in texture

2. Foul smell

3. No change in appearance

4. Distinct taste alteration

The correct answer is: No change in appearance

Foods contaminated with pathogenic bacteria often do not show any visible changes in appearance, making it difficult for consumers to identify if the food is safe to eat. This characteristic is particularly concerning because it can lead to unknowing consumption of contaminated food, increasing the risk of foodborne illness. While some foods may exhibit changes such as spoilage or off-odors, pathogenic bacteria can proliferate without altering the look or smell of the food. In contrast, options involving a change in texture, foul smell, or distinct taste alteration may indicate spoilage bacteria or other forms of degradation. However, pathogenic bacteria can exist in food without causing these noticeable changes, which highlights the importance of safe food handling practices to prevent illness, even in foods that appear and smell fresh.