I would ask when was this facility built? And has it always produced baby formula? "Clean-in-place" has not always been a thing, and when it arose it was kind

I would ask when was this facility built? And has it always produced baby formula? "Clean-in-place" has not always been a thing, and when it arose it was kind of expected to become a more feasible approach as newer facilities were built which had the concept in mind to begin with.