During the past decade or so, a
mixture of Carbon Dioxide (CO2) and Nitrogen (N) gas for
dispensing draft beer has become enormously popular at retail
outlets such as bars, restaurants, pubs and major venues.
Driving this popularity is the dispensing of stout or
nitrogenated draft beers. Guinness, Murphy Stout, Boddington and
other craft brews require a CO2 and Nitrogen blend to achieve
the correct presentation, and flavor in the glass.
Gas blending is also applied for dispensing ales and lagers
where high gas pressures are required to propel beer through a
draft beer system.
