VIDEO: Beer Foam | Serving Up Science
Find out the science behind beer foam with host Sheril Kirshenbaum.
Watch it here now and in the PBS App
Ever wondered how beer foam foams? Often referred to as the “head” or “collar,” beer foam is a collection of frothy bubbles carbonating the top layer of freshly poured beer. The bubbles are carbon dioxide gas, which is created as a byproduct of fermentation - the process by which we get alcohol. So grab a cold- as we join a local brewer in exploring the science of beer foam!
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