What are the signs of spoilage in food?

The signs of spoilage in food are often indicated by noticeable changes in color and the development of strong, unpleasant odors. When food spoils, it undergoes chemical and biological processes that can alter its appearance and smell.

A color change can signify the breakdown of food components; for example, meat may turn a grayish or greenish hue as it spoils, and fruits may darken or show other signs of degradation. Similarly, a strong smell that is off or foul is a common indication that bacteria or mold have begun to proliferate, indicating that the food is no longer safe to consume.

In contrast, aspects like cold temperature and increased firmness, clear packaging and bright colors, or freshness and firmness suggest characteristics of fresh food and proper storage rather than spoilage. Recognizing these spoilage signs is crucial for ensuring food safety and preventing foodborne illnesses.