What Gives Sour Beers Their Punchy Flavor?
As the craft beer revolution blazes on, the amount of flavor profiles that drinkers can wrap their hands around has expanded dramatically. Gone are the days that pale pilsners or black-as-night stouts were the only offerings.
Making beer comes down to four main elements: malt, hops (the key ingredient that makes beer bitter), water, and yeast, but in the case of sour beers, it's the bacteria resulting from the fermentation process that provide its signature tang. While words like Lactobacillus and Pediococcus may seem like something you want to avoid, when harnessed with intention by professional brewers, they have the power to create complexity and craveable flavor profiles that have generated a major imbibing fanbase.
The controlled creation of modern sour beers
Although they might be novel to modern-day drinkers, sour beers have a long history. It's possible that some of these styles, like the subtly tart Berliner weisse, may have come to be unintentionally as a result of cross-contamination, with that bacteria finding its way into the product without an invitation. Today's brewers, however, are much more deliberate; they adhere to standards and regulations designed to prevent this kind of mishap, and have the education to recreate these circumstances, pitching the bacteria into the wort (this is the name for the liquid that eventually becomes beer after fermentation) in a controlled and planned way.
While some sours are super sessionable, subtly tart, and lower on the ABV range, others can be bracing and weigh in on the high end of the alcohol spectrum. They might be infused with fruity flavors like citrus or raspberry, or aged in barrels. The main characteristic that unites them is that lip-smacking, puckering quality. You can follow easy advice for pairing beers with your meals, and these styles are excellent culinary partners thanks to their acidity and range, too. But no matter how you serve them, rest assured that your sour beer's punchy flavor is deliberately designed by your favorite brewers.