For many people, a glass of beer feels incomplete without a thick, creamy layer of foam resting on top. Yet anyone who enjoys beer knows that this foam often disappears quickly, collapsing before the first sip. Some varieties, however, manage to…
For many people, a glass of beer feels incomplete without a thick, creamy layer of foam resting on top. Yet anyone who enjoys beer knows that this foam often disappears quickly, collapsing before the first sip. Some varieties, however, manage to…