Real Ale is turning 21 and everyone is invited. The brewing company is throwing down with an old-school kegger, which means beer, rock & roll, and more beer! To celebrate, this year's anniversary beer is a throw-back to the days of old, when beer was simpler. The birthday beer - known as "21" - will be a pre-prohibition lager. Light-bodied, with a slight malt sweetness, a clean hop profile and a low ABV. That means that it is, most importantly, crushable. DDs and individuals under 21 get in free.