The Plastic Ball In Guinness Cans Explained
December 11, 2008 by Steve - Seton Hall
After cracking a refreshing can of Guinness, most of you have probably wondered, What is the deal with the little plastic ball floating around in cans of Guinness? Well, today you get your answer.
The little plastic ball called a “Widget” was first patented by the Guinness company years ago to add the right kind of head on their thick and creamy stout, which is less fizzy than regular lager beers like Bud Light.
When Guinness is canned the brewers add a shot of liquid nitrogen to help pressurize the can.
As the pressure in the can rises, compressed nitrogen and beer are forced into the sphere through a tiny pin sized hole.
When you open the can, the beer and compressed nitrogen within the sphere depressurize and are shot out into the beer. This disturbance causes the CO2 to bubble up which creates the foamy head at the top of the glass. The only thing left to do next is drink!
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Thanks for waisting thirty seconds of my life! I’m going to go look at that chick from UM.
i like balls
Before they invented the widget, you used to get a black plastic “syringe”-type gadget with your cans – you would use it to shoot air into the Guinness after you poured it to help give it a head. Now you know!
And Guinness is a stout, not a larger
nick…. you’ve wasted a lot of your own life – “waist” is not the correct root word for waste.
Interesting. I knew why it was in there, but not how it did what it did. Although I would like to point out one tidbit I found out about Guinness. It’s actually the Nitrogen which is the “carbonation” in their standard fare. Though I’m sure there’s some CO2 in there, its the nitrogen which makes that thick head and the tiny bubbles which make that cool rising cloud effect when you pour it into a glass. As cool as this is, it kinda sucks for us homebrewers out there, since we would have to buy a kegging system with nitrogen to make a propper clone!