Study Reveals Why some Beer Pints Stay Foamy

Study reveals why some beer pints stay foamy

A big head of foam at the top of a poured glass is often seen as one of the clearest signs of a good ale

Fluid physics reveals why some beers produce bigger heads

Credit: Personal Creations (CC BY 2.0) The frothy layer of foam which sits at the top of a freshly poured glass of beer, known as the ‘head’, can reveal a lot about the beverage. Some beer enthusiasts prefer their heads larger and longer lasting, while others would rather forego the foam in favour of liquid. New research examined several types of beer at different stages of the fermentation process to figure out the physics behind why some beer …