Guinness uses a blend of nitrogen and CO2 instead of straight CO2 to dispense the beer. It is the extremely low solubility of the nitrogen that causes the cascade effect.
Flaked barley is there to cut costs. The money is on the nitro keg. Btw, in Britain nitro keg is a derisory term (e.g., nitro keg bitter is almost universally hated and carried by pubs that don't get through a cask).
Flaked barley is there to cut costs. The money is on the nitro keg. Btw, in Britain nitro keg is a derisory term (e.g., nitro keg bitter is almost universally hated and carried by pubs that don't get through a cask).
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