US Beverage Hires Certified Sommelier, Michael Shef, to Help Promote the Growing Beer Brands From Grupo Damm STAMFORD, Conn., Sept. 26, 2012 (GLOBE NEWSWIRE) -- Michael Shef, certified sommelier, and well-known restaurateur based out of New York, was hired by US Beverage to spearhead sales for the Grupo Damm...