A beverage closure is a device used to seal containers that hold drinks, such as bottles and cans. Its primary purpose is to keep the beverage fresh and prevent contamination. Common types of closures include corks, screw caps, and crown caps, each designed for specific types of beverages like wine, soda, or beer. These closures play a crucial role in maintaining the quality and safety of beverages during storage and transportation. They also help preserve carbonation in fizzy drinks and prevent spoilage in perishable items. Proper sealing is essential for ensuring a pleasant drinking experience.