Beer is the most widely consumed alcoholic beverage in the world and the third most popular drink after water and tea.1 Beer is typically brewed from four basic ingredients: water, a starch source (e.g., malted barley), brewer’s yeast, and a flavoring agent such as hops. Many varieties of beer result from differences in these ingredients, the additives used, and the brewing process. Beer contains a complex mixture of phenolic compounds extracted from the starch source and hops.
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