There does seem to be an interesting interpretation question here. Is the pump in a production area where they brew large quantities, bottle it, ship it out etc. or is it in something like a test kitchen or break area? If the first description is the more accurate, the code doesn't require personnel protection. But determining what a "kitchen" is can be tricky. Is there a set of plans that says its a kitchen? Then its a kitchen. Either way, frankly, if it had GFCI protection previously, it still should.
