A kegging system is a method used to store and dispense beverages, typically beer, in a pressurized container called a keg. This system allows for easy transport and serving, maintaining the beverage's freshness and carbonation. Kegs come in various sizes, with the most common being the half-barrel and quarter-barrel. Kegging systems often include a CO2 tank to pressurize the keg, a regulator to control the pressure, and a tap for dispensing the drink. This setup is popular in bars and breweries, as it simplifies serving and reduces waste compared to traditional bottles or cans.