The History Of Draft Beer Goes Back Further Than You Think - Chowhound

Master1305/Shutterstock Draft beer delights with a special kind of smooth satisfaction. While a bartender pouring a pint makes the beverage appear effortlessly, an intricate system delivers the booze into the glass. Relying on a mixture of carbon dioxide and nitrogen gas, valves pump beer from keg to glass all via tap. The beverage's pressure, temperature, and level of carbonation are controlled to a tee, hence…