A draft beer system is a setup used to serve beer from kegs rather than bottles or cans. It typically includes components like a keg, a tap, and a CO2 tank to maintain pressure. The system allows for fresh beer to be poured directly from the keg, preserving its flavor and carbonation. These systems can be found in various settings, including bars, restaurants, and even home setups. Proper maintenance is essential to ensure the beer remains cold and carbonated, which enhances the drinking experience. Regular cleaning of the lines and taps is also crucial to prevent contamination and off-flavors.