Zythophile
Someone who loves beer and all things beer-related. Similar to people who are passionate about wine, a Zythophile will be obessed with talking about beer, tasting beer, cooking with beer, the history of beer, brewing techniques, pairing beer with food, attending beer festivals, etc.
You are probably a Zythophile if you have a stash of craft beer/ microbrews at your house at all times. You talk your friends to death about what beers you've tried and use words such as "malty","hoppy", "refreshing", or "mouthfeel" with other adjectives to describe beer. You have a strict aversion to Budweiser and Coors. You have a home-brewing kit in your kitchen, and are interested in serving beer in the proper glassware. Or you just really like to drink beer.