What is a common sign of food spoilage?

A common sign of food spoilage is the presence of off odors or discoloration. When food deteriorates, it undergoes various chemical changes and microbial growth, which often leads to unpleasant smells that are noticeably different from the fresh aroma of safe food. Additionally, discoloration can indicate that spoilage organisms, such as bacteria or mold, are present, and these changes make the food unappetizing and potentially dangerous to consume.

Fresh smells, normal texture, and bright coloration typically suggest that food is still safe to eat and has not yet spoiled, which is why they are not considered indicators of spoilage. Recognizing the signs of spoilage is crucial in food safety, as consuming spoiled food can lead to foodborne illnesses.