Carolinas District

The document explores the critical role of foam in beer, detailing its creation through CO2 gas breakout and the influence of nucleation sites and pouring techniques. It discusses the composition of foam, primarily proteins and stabilizers, and the mechanics of bubble collapse, while distinguishing between haze and foam. The text identifies factors that affect foam stability, including the impact of lipids and cleaning agents, and provides strategies to enhance foam retention through the use of high-protein malts and specific grain additions.