Article / Updated 10-23-2023
Of the four main ingredients used in homebrewing beer (barley, hops, yeast, and water), barley makes the biggest contribution. Barley gives beer its color, underlying flavor, sweetness, body, head of foam, and mouthfeel. Barley also contributes the natural sugars that feed the yeast, which in turn converts the sugars into alcohol and carbon dioxide during fermentation.