Beer is carbonated because carbon dioxide gas is dissolved in it. The carbon dioxide gas forms when yeast ferments the sugar in the beer. The carbon dioxide gas makes the beer fizzy and gives it its carbonation. Carbonation also helps to preserve the beer and prevent it from going bad.Carbonation ca

How is beer carbonated? That’s actually a question that has far more answers than you’d think, and to some beer fans, is serious enough to dictate whether they will drink a beer or not.