Dutch airline KLM will soon begin offering draft beers during flights. The company partnered with Heineken to create a "beer tap trolley" that keeps kegs chilled and properly pressurized for up to eight hours and at 36,000 feet. A normal keg would dispense pints full of foam at that altitude, but the new design uses air pressure instead of the usual carbon dioxide so that the beer comes out just right. KLM plans to start rolling out the in-flight kegs next month.
