Greg Koch is a self-described "beer geek gone pro."
Koch, the co-founder and CEO of Stone Brewing Co., started as a homebrewer and has never forgotten his roots, even while growing Stone into the 10th-largest craft brewer in the U.S., based on 2012 sales volume.
"Homebrewing has always been a fundamental element of the craft brewing culture," Koch recently told CNBC. "The beautiful thing about homebrewing is that there doesn't have to be a commercial objective. The brewers brew what they want, when they want."
These days a growing number of consumers are catching the homebrewing bug. The American Homebrewers Association (AHA) estimates that 1 million Americans brew beer at home at least once a year and with Mississippi passing a law allowing homebrewing last month, it's now legal in all 50 states for the first time since Prohibition.