My interest in sour ales began at Safeway. I bought a Passionfruit Sour Ale from Breakside. When I took it home and tasted it, the flavor reminded me of kombucha.
First came the tangy sourness, followed by a bit of vinegar and then a subtle burst of passionfruit.
What is a sour ale? What gives it a unique flavor? I met with Bolt Minister, head brewer and owner of 54-40 in Washougal. Minister lives up to his Marvel Comics-like name — his superpower is that he knows a lot about beer. He won several medals at the Great American Beer Festival and World Beer Cup as a brewer at Old Town Pizza in Portland before opening 54-40 Brewing Company at the Port of Camas-Washougal several years ago.
American-style sour ales are relatively new and because there isn’t a set tradition for them (like in the Old World with Lambics) there is room for brewers to play around. Home brewers have played around with sours for years; but, a hop shortage eight years ago (due to a fire at a big hop purveyor in Yakima) coaxed brewers into seeking creative ways to give beer flavor with minimal use of hops. Some brewers decided to age their beer in wine or bourbon barrels while others decided to create sours.