Beer is an alcoholic beverage made from four primary ingredients: water, malted grains (usually barley), hops, and yeast. The brewing process involves extracting sugars from the grains, boiling the mixture with hops for flavor, and fermenting it with yeast to produce alcohol. There are many styles of beer, ranging from light lagers to dark stouts, each with unique flavors and aromas. Beer has a long history, dating back thousands of years to ancient civilizations like the Sumerians and Egyptians. It is often enjoyed socially and is a popular choice at gatherings, celebrations, and sporting events. Beer is also commonly paired with food, enhancing the dining experience.