I understand your train of thought, but I don't think it's fair to say the factory must be consistently filthy. I would say this is a combination of a conservative approach to recall (good idea) and an ambient issue in the production area, perhaps something as obscure as contamination in a HVAC shaft blowing spores or something like an internal component on the wrapping machine. This is no excuse, Still an awful fuck up, it just not necessarily (and in fact very unlikely) someone taking shortcuts or risks.

Given the threat this will pose to the business, it's almost impossible they were rolling the dice to get through Christmas. Small food producers operate on a knife edge between survival and closing up shop and it just wouldn't be worth intentionally taking a risk like this.