I would be effusive about your love of brewing and do your best to convey how excited you are to have the chance to show/teach/help others about beer. Someone with a background knowledge of brewing would be great for the gift shop and for a tasting room - things like IBU, maltiness, decoction mashing, every term we use to describe our hobby needs a translator for the non brewer. I had no idea what half that stuff meant until I started reading a lot...a lot of backposts and books and googling every other word in a promash report.
In the interview show your excitement about the opportunity but don't get caught up in the overly complicated jargon(RDWHAHB).
In short: If they ask you what a cereal mash is tell them but I wouldn't bring your home water report and hydrometer along with you(but maybe you could tell them why you might need one.
