Food can become contaminated through various means:
Biological contamination: Involves harmful microorganisms like Salmonella, E. coli, and Listeria. Chemical contamination: Includes pesticides, cleaning agents, and food additives. Physical contamination: Occurs when foreign objects like glass, metal, or plastic are present in food. Cross-contamination: Happens when microorganisms are transferred from one surface to another, often due to improper handling or storage.
