Have you ever wondered why there is a plastic ball sitting at the bottom of your empty Guinness can? Turns out it's an ...

You've probably noticed that little ball making a racket inside your can of Guinness. As it turns out, it's part of the ...

Guinness representatives told Insider over email. It basically looks like a little ping pong ball. During the canning process, brewers add liquid nitrogen to the beer immediately before sealing it up.

Have you ever noticed the clink-clank of a tiny object rattling around the inside of an empty Guinness ... ping pong ball. During the canning process, brewers add pressurized nitrogen to the ...

Ordering a Guinness on draft takes longer than most other beers. Part of the reason is the gas used to carbonate it — nitrogen. William Lee, a professor of Industrial Mathematics at the ...

This allows for the nitrogen inherent in Guinness to settle in your brew. All those small bubbles that you see in Guinness that seem to be falling? That's from nitrogen "cascading down the side of ...