Why does the “head” of foam when you pour a soda dissipate within a few seconds, but on many beers it lasts much longer?

Question

Why does the “head” of foam when you pour a soda dissipate within a few seconds, but on many beers it lasts much longer?

In: Chemistry

Answer 1

The magic word here is ‘surfactants’. Google it, basically ingredients that are active at surfaces and alter the surface tension and stability.