With one in eight beers sold in the U.S. of craft origin, the business is attracting a barrelful of new brewers, many of whom have more financial aspirations that brewing acumen. According to a recent online feature at npr.org, annual industry growth of 20% is good for some while it encourages marginal makers to invest in capacity. Already, Sam Adams has experienced a comeuppance as drinkers favor more local recipes along with stronger and more exotic flavors. As brew lovers become pickier, the new generation fermenters will have their hops cut out for them to pour distinctive lagers, ales and bitters.