yeah but this was fake . it was april fools thing ..
Helium is about 700 times less soluble in water as compared to carbon dioxide. It is one of the least soluble gases in water, and only about 0.0016 g of Helium would get dissolved in a litre of beer while, at the same conditions, 2.5 g of carbon dioxide is usually present in a litre of beer. This dissolved carbon dioxide is what releases slowly and creates the fizz. No slow fizz can be done with helium. Undissolved helium in beer would coalesce into one or two big bubbles and … ploop, it would go out as soon as the seal was broken.
Even if Helium was forced into the beer and sealed in a beer can, it would be useless. As soon as the seal would break, all the meaningful amount of helium present inside, undissolved, under pressure, would come out so quickly (due to less viscous beer) that it would bring out a lot of beer with it. It would create a mess. And you wouldn’t be able to even bring the can near your face by the time the whole gas goes away.
Had carbon dioxide been used for the same purpose, the gas would, like it normally does, come out steadily. It would make the bubbles last.