German water sommelier Martin Riese looks at bottles of water to be used in a water tasting class at Patina restaurant in Los Angeles, California February 25, 2015. Los Angeles, birthplace of many food trends, may prove the perfect setting for the next phase in Riese's campaign to make people think about water in the same way they think about wine. Picture taken February 25, 2015. REUTERS/Mario Anzuoni (UNITED STATES - Tags: SOCIETY FOOD)