which alcoholic beverage contains polyphenols?
Beer is also a great source of polyphenols, and contains a great variety of polyphenols. This is because beer is made with barley as well as hops. Barley provides the majority of the polyphenols found in beer, but hops are an important source of a variety of polyphenols.
Red wine contains more polyphenols than white wine (around 10-fold) because during the wine making process, red wine, unlike white wine, is macerated for weeks with the skin which is one of the parts of the grape with the highest concentrations of phenolic compounds [30].