People I met who worked at a dessert factory said “no one cleans the ice cream machine because it smells bad when you open it”

Not to say they shouldn’t be shutdown but I bet mold is more common than people think.

Heh - Cloaca Cola

I can taste when they haven’t cleaned the nozzles for a very long time. I try not to think about how moldy they are even when I can’t taste it.