Which of the following is NOT an established taste in beer?

Salty is not recognized as one of the established primary tastes typically identified in beer. The main tastes found in beer include sweetness, which often comes from the malt, sourness, which can be produced through wild yeast and certain fermentation processes, and fruity flavors that arise from esters and phenols generated during fermentation. These flavors contribute to the overall profile of the beer and are important for the brewing process and tasting notes.

While saltiness can be present in some food pairings with beer or in specific brewing styles that incorporate salty ingredients (like Gose), it is not considered one of the fundamental tastes that define beer as a beverage. The established taste categories focus more on sweetness, sourness, and the myriad of fruity notes, which are crucial in describing and evaluating beer.