What the Fizz? Gas in the Beer Industry

Medical Welding

Did you know that one of the most common uses for welding gas in Georgia, outside of the workshop, is in the beverage industry? As microbrews pop up like clovers across the country, the Atlanta, GA region is also playing host to more and more purveyors of the intoxicating, bubbly brew. The beer craze is fueled in part by welding gases, in particular nitrogen and carbon dioxide. Beverage producers throughout the region know they can depend on Sidney Lee Welding Supply Co. for their beer gas needs.

While traditional beers like lager and IPA have a crisp taste of carbon dioxide (hence, ‘carbonated’), part of the newer trend in beer production is the ‘nitro’ stout. As the name implies, the nitro stout is fueled by using a combination of nitrogen gas with a smaller percentage of carbon dioxide. Such kinds of mixed gases are most readily available from distributors of welding supplies like Sidney Lee.


If you’ve ever drank one of those famous Irish stouts straight from a tap at your favorite bar in Atlanta, maybe you’ve noticed how the signature froth seems to fall differently than it does in a lager beer. That’s because of the 70 percent nitrogen content of the beer gas used in production. Nitrogen, unlike CO2, is unable to dissolve in the liquid. A cascade effect is created as bubbles fall down the side of the glass, while the carbonation rises into a head.

The reason certain beers are more likely to be found poured “on nitro” taps more than others just comes down to taste. It’s hops versus malts that makes the main difference between an IPA and a stout. Brewers who employ welding gases in their beer production mostly agree that the taste of nitrogen goes better with malty beers than with hoppy ones. What’s on nitro at your local bar? The welding experts at Sidney Lee Welding Supply Co will be glad to hear from you about this information, in addition to any other pressing welding concerns you might have to ask them about in the Atlanta, GA region.