A Full-Barrel Keg is a standard size keg used in the beverage industry, particularly for storing and serving beer. It typically holds 15.5 gallons, which is equivalent to about 165 12-ounce servings. This size is commonly used in bars, restaurants, and for large gatherings. Full-barrel kegs are made of stainless steel, which helps preserve the quality of the beverage inside. They are designed to be pressurized, allowing for easy dispensing through a tap system. This keg type is often associated with popular beer brands and is a staple in the brewing industry.