Brewers usually fill their kegs with carbon dioxide or nitrogen. But every once in a while, some brewers will post a video announcing they have made beer with helium—and have the high voices to prove it. While these videos are eventually exposed as pranks, the scientific possibility of helium beer is real.
Speaking of Chemistry's Matt Davenport investigates with some scientist friends who gave it a try.
Check out the video here:
Explore further: Top European beers to show calorie counts