. The anti-tobacco movement worked so well, so its time to give a go at peanuts. (Just something that crossed my mind)
I used to be in QC for a company that extruded food bars. You are suppose to shut down the line, disassemble the equipment and clean all the dies and anything that touches the product every night. Then the lab tech is suppose to take swabs to make sure you didn't miss something.
Yes, this means that you have to hire qualified people to do the work (and they ain't cheap) and you have equipment idle for couple of hours at least but this is FOOD. You don't take shortcuts.
And this is a prime example as to why you do not. People died.