![This is the ball that you hear inside of Guinness Beer cans when you shake them : r/mildlyinteresting This is the ball that you hear inside of Guinness Beer cans when you shake them : r/mildlyinteresting](https://i.redd.it/0mfk6ahgn6441.jpg)
This is the ball that you hear inside of Guinness Beer cans when you shake them : r/mildlyinteresting
![Guinness US on Twitter: "No, it's not a ping pong ball, it's the “widget” that gives Draught in a can that foamy head. Here's how it works: http://t.co/Tu2kkHiU7r" / Twitter Guinness US on Twitter: "No, it's not a ping pong ball, it's the “widget” that gives Draught in a can that foamy head. Here's how it works: http://t.co/Tu2kkHiU7r" / Twitter](https://pbs.twimg.com/media/CEwfQ1LUIAAqqXm.jpg)
Guinness US on Twitter: "No, it's not a ping pong ball, it's the “widget” that gives Draught in a can that foamy head. Here's how it works: http://t.co/Tu2kkHiU7r" / Twitter
![What is the ball in a can of Guinness? Guinness Inspectors real? || Inside the Brackets Ep.1 [🍺] - YouTube What is the ball in a can of Guinness? Guinness Inspectors real? || Inside the Brackets Ep.1 [🍺] - YouTube](https://i.ytimg.com/vi/RIbDE9TuHLI/mqdefault.jpg)