Germany is famous for its beer, and the purity of the country's brews has long been protected by a 16th century purity law called the Reinheitsgebot that restricts certain additives and flavorings. But lately Germany's craft brewers have been branching out and even experimenting with fruity flavors to create nontraditional brews that still meet traditional standards of purity.

"It really amazes people what kind of special flavours you can bring to a beer even within the Reinheitsgebot," said Thorsten Schoppe, a Berlin beer-maker who brews a double India pale ale with a citrusy fragrance.

According to The Local, the purity law says that only water, malt, hops, and yeast can be used to make beer. No colorings, flavorings, or preservatives can be added. But "flavored" hops with fruity characteristics can add surprising dimensions to beer.

"Some people don't believe you if you say this is all natural, they think you must have added some flavors," Schoppe said. 

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