The white head of a Guinness beer is primarily due to the nitrogen gas used in its carbonation process. Unlike traditional carbon dioxide, nitrogen creates smaller bubbles that produce a creamy, dense foam. This distinctive white foam enhances the visual appeal and contributes to the beer's unique mouthfeel and flavor profile. Additionally, the dark color of the stout contrasts sharply with the white head, making it visually striking.
Guinness looks black, with a white creamy head. See the image at the link below.
??????? Guinness in a can has a widget to help give it a head
Actually, guinness is ruby red, and the head should be almost white, Guiness that is brown is poor Guinness, and will give you the Guinness s**ts
This is what I got off of the guinness.com website: Glad you asked. The widget is a plastic molded device that sits on the top of the contents of each can of GUINNESS® Draught. When the can is opened, a small amount of beer and nitrogen, trapped in the widget, is forced out through the beer, which creates the famous creamy head that you find on a pint of GUINNESS® Draught served in a pub. The widget gives GUINNESS® Draught in cans the taste and texture of a pub-poured pint at home. In GUINNESS® Draught in bottles, the clever little 'rocket' widget floats free in the beer to refresh the creamy head of your GUINNESS® Draught with each swig you take from the bottle.
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Guinness.
A pint of smithwicks with a Guinness head.
Guinness cans do not come with a white ball inside. The white ball may be found in some cans of nitrogenated beers, like nitro coffee or cream ales, to help with the nitro infusion process.
Alec Guinness
A bishop's collar is a pint of Guinness or similar drink with two much head on the top.
Yes they do have a white strip on their head.
Arthur Guinness.