The Guinness widget is a tiny, plastic ball inside beer cans. During canning, pressurized nitrogen is added to the brew, which trickles into a hole in the widget. Once opened, the widget's ...
Ever wondered why there’s a plastic ball in your can of Guinness? It’s not just a quirky feature—it’s brilliant beer science. In this video, see how this tiny device, called a widget, recreates the ...
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