Which of the following is NOT a role of hops in beer?

Hops play several essential roles in beer brewing, primarily focused on enhancing its flavor and stability. One of the significant functions of hops is to add bitterness to balance the sweetness of the malt, which in turn contributes to the overall flavor profile of the beer. This bitterness comes from compounds called alpha acids released during the boiling process.

In addition to bitterness, hops also provide distinct flavors and aromas that can range from floral and citrusy to pine-like, depending on the variety used. These flavors and aromatic contributions are crucial for many beer styles and enhance the drinking experience.

In contrast, while hops do provide some nutrients, they are not considered a significant source of vitamins in the context of brewing or the nutritional profile of beer. The primary focus of hops is on their chemical properties that impact flavor, bitterness, and aroma—rather than providing nutritional value. Thus, the assertion that hops contribute vitamins is not accurate and highlights that this is not a role hops play in beer production.