3 Types of Food ContaminantsOnline version Match the items with their classification. by Lauren Simmons 1 Bacteria 2 Chemical 3 Physical Flu Cold Germs Salmonella E. Coli Wash hands. Bacteria Contaminant Chemical Contaminant Bleach Mechanical Oil Store in a separate area. Use original containers. Sanitizing Solution Physical Contaminant Rodent Droppings Hair Band-aids Fingernail Polish Wear a hair net.