How do food factories with many machines, including tracks and chutes and robotic grabbers, keep the machinery sterile and clean for human safety?
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All the machines get washed at a specified frequency. The entire factory room is also a controlled area where people wear anti-contamination clothing, and the factory is inspected to make sure there aren’t problems like roof leaks, holes in the walls for pests, etc…
That said, food isn’t entirely sterile. There are non-zero limits for most food products on various types of contamination. Foods with the potential to rot due to contamination usually go through a sterilizing process as the last step before leaving the factory, such as pasturization.
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