How does Salmonella survive in Dry Food?

BCSnob wrote:

Studies indicate that bacteria survive hostile environments by forming organized colonies of bacteria called Biofilms.
Biofilms: How Bacteria Survive Hostile Environments

You asked.....

I LOVED that article!! Ties right in with my new hobby: "Poop Snoop" (much more elegant than "Turd Herder"). I've been trying to track non-point E-coli sources in a creek that drains into our lake - and one of the things I've been stressing is that just because the E-coli level has gone down a week after an elevated test result - doesn't mean it's "not there" because it can live for quite a while.