(2003 to 2005)

How Guiness Works

Mon Apr 4 11:02:00 UTC+1000 2005


How the widget in a beer can works.

The purpose of the widget is to release the CO2 from some of the beer in the can to create the head. The widget is a plastic, nitrogen-filled sphere with a tiny hole in it. The sphere is added to the can before the can is sealed. It floats in the beer, with the hole just slightly below the surface of the beer.

Copyright © 2003-2005 John Elliot