Prototype Series 2013 Our annual prototype challenge sees us brew a series of new beers, and allows the public to choose which should feature alongside our headliner range. A beer that will make Kessel run in less than 12 parsecs, Interstellar is a red rye IPA with spicy rye flavours from the malt, and will have great all-round spicy, fruity and earthy hop aromas from the use of Willamette and Amarillo. Like the second Death Star, it's still under construction, but already packs a punch, and the third 2013 Prototype Challenge beer will weigh in with a satisfying 65 IBUs which match up perfectly with its 6.5% ABV.