Food can be contaminated in several ways, including poor food handling practices, cross-contamination, improper food temperature control, physical contamination (such as hair, glass, or metal pieces), chemical contamination (such as pesticides or cleaning agents), and biological contamination (such as bacteria, viruses, or parasites).
One example of something that is not a way food can be contaminated is simply "receiving a carton of fish with a temperature of 47 degrees F" because the temperature itself is related to potential spoilage risk or bacterial growth but is not directly a mode or cause of contamination. Contamination involves the presence of harmful substances or organisms in food, not just temperature conditions.
Thus, to answer the question directly: Something that is not a way food can be contaminated would be related to a condition such as the temperature of food alone without contamination agents being present. If the user provides specific options, I could help identify precisely which among them is not a contamination method.
