Sour Ale is a type of beer characterized by its tart, acidic flavor, often achieved through spontaneous fermentation with wild yeast and bacteria. It produces a wide range of styles, from light and fruity to dark and robust, with flavors of fruit, spice, and often a touch of funk or earthiness. The ABV for sour ales typically ranges from 4-8%. Its popularity is due to its unique, refreshing flavor profile and its association with traditional and experimental brewing practices.
Sour ales are produced in many brewing traditions around the world, with notable examples including Belgian Lambics, Gueuzes, and American Wild Ales. The use of wild yeast and bacteria, such as Brettanomyces and Lactobacillus, gives sour ales their distinctive tartness and complexity. Sour ales are often enjoyed for their bold, adventurous flavors and their ability to pair well with a wide variety of foods, making them a favorite among beer enthusiasts seeking something unique and exciting.