A sixtel is a type of beer container that holds approximately 5.16 gallons, or 20 liters, of beer. It is one-sixth the size of a standard keg, which typically holds 15.5 gallons. Sixtels are popular among craft breweries and bars, as they allow for a greater variety of beer options without taking up too much space. Sixtels are often used for serving smaller batches of beer, making them ideal for events or establishments that want to offer a rotating selection of brews. They are compatible with many draft systems and can be easily transported, making them a convenient choice for both consumers and retailers.