What is contamination in the context of food safety?

Contamination in the context of food safety refers specifically to the presence of harmful materials. This can include harmful bacteria, viruses, parasites, or chemicals that can make food unsafe for consumption. When food becomes contaminated, it poses a significant risk to public health, as consuming contaminated food can lead to foodborne illnesses, which can be severe or even life-threatening.

Understanding contamination is crucial for anyone involved in food handling, preparation, and service, as it emphasizes the importance of maintaining safety by preventing harmful substances from entering the food supply. The other options relate to safe food practices or conditions that do not introduce contaminants, but they do not define contamination itself.