Food came from an unapproved source, was missing required date marks or labels, or was past its use-by date. Knowing where food came from and how old it is helps prevent illness.
Plumbing properly sized, installed, and maintained; proper backflow devices, indirect drains, no cross-connections
In plain English
Food was stored or handled in a way that could let germs or other material get into it, such as raw meat stored above ready-to-eat food or uncovered food. Cross-contamination is a common cause of foodborne illness.