Sours are a type of fermented beverage, often characterized by their tart and tangy flavors. This sourness is primarily produced through the action of specific bacteria, such as Lactobacillus, which convert sugars into lactic acid during fermentation. Common examples of sour beverages include certain styles of beer, like Berliner Weisse and Gose, as well as traditional drinks like kombucha. The fermentation process for sours can vary, but it typically involves a combination of yeast and bacteria. This dual fermentation not only creates the distinctive sour taste but also contributes to complex aromas and flavors. Sours are enjoyed for their refreshing qualities and are often paired with various foods.