Widget (beer) - Beer Glass Widget

Beer Glass Widget

The term widget glass can be used to refer to a laser-etched pattern at the bottom of a beer glass which aids the release of carbon dioxide bubbles. The pattern of the etching can be anything from a simple circular or chequered design to a logo or text.

The widget in the base of a beer glass works by creating a nucleation point, allowing the CO₂ to be released from the liquid which comes into contact with it, thus assisting in maintaining head on the beer.