And what's the difference between a barrel and a keg? Whether you're planning a casual backyard party with friends or preparing for a big event, purchasing a keg of beer for guests to enjoy may be ...

which is technically called a half-barrel keg (more on that in a second), you're looking at about 15.5 gallons worth of beer. And in terms of pints, 15.5 gallons ends up being a lot of servings.

Director of brewing Mike Unsworth said: “It takes something special to be good enough to join our permanent range of beers, ...