The Secret to Long-Lasting Beer Head: It's All About Fermentation

A seven-year study by Swiss researchers reveals the crucial role of fermentation in beer foam longevity. The research, published in Physics of Fluids, shows that the number of fermentations (single, double, or triple) significantly impacts foam stability. Foam stability is a complex interplay of factors including surfactants, gravity, and bubble interactions. Understanding these dynamics not only enhances our appreciation of beer but also offers insights into the broader field of foam science.