The Randall was first pioneered by the ever-innovative Dogfish Head Brewery in Maryland. Sam Calagione, Dogfish Head's founder and president, was looking for a way to make his brutally-bitter 120 Minute IPA even more hoppy at an event called the “Lupulin Slam” in 2002 (lupulin is a bitter powder found on hop plants). Sam built a makeshift water filter and filled it with … [Read more...] about How to Make a Randall With a Water Filter Housing