An adjunct is any ingredient used in brewing that isn’t part of the four core ingredients: water, malted barley, hops, and yeast. Common examples include corn, rice, oats, fruit, spices, and even coffee. Adjuncts can lighten body, add sweetness, or introduce unique flavors. Some traditionalists view adjuncts skeptically, while craft brewers embrace them for creativity. Their use can define entire styles, such as wheat beers or fruit sours.
