If the answer is no, how do the skills necessary to build the two types of plants overlap? If I was asked an hour ago if I thought the same skills necessary to maintain chemical systems in a chip fab we’re the same kind of skills necessary to maintain a meat processing plant, then I would have confidently said no.
In fact, a lot of chemical engineering (some would say the lion's share) has to do with heat and water management. It's a huge factor whether you're operating a clean room or an oil refinery.
Again, these are blue collar jobs. High school education at best. Mostly a manual labor job. They're not designing the plant, just operating and repairing it according to plans designed by someone else.
EDIT: Here's a list of chemicals used in meat processing: https://www.osha.gov/meatpacking/hazards-solutions. Ammonia for refrigeration. Chlorine, hydrogen peroxide and peracetic acid for disinfectant. The chemicals are delivered to the plant in concentrated forms and diluted for use.