Mystery Of Texture Of Guinness Beer: Inclination Angle Of A Pint Glass Is Key To Solution

A team of researchers from Osaka University and Kirin Holdings Company, Limited demonstrated that the texture-formation in a pint glass of Guinness beer is induced by flow of a bubble-free fluid film flowing down along the wall of the glass, a world first. This phenomenon is found to be analogous to roll waves commonly observed in water sliding downhill on a rainy day. Their research results were published in Scientific Reports.


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