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

It's hard to beat the experience of having a bartender pour you a draught glass full of ... That little ball, known as a ...

The plastic ball in the Guinness can, also called a "widget," ensures the draught stout has its classic foamy head, as if it were poured from the tap. If you crack open a can of Guinness draught ...