Charles Bamforth is the Anheuser-Busch Endowed Professor of Malting and Brewing Sciences at UC Davis, which means he knows a few things about making beer. He can get into some nitty-gritty topics, like the enzymology of the brewing process, foam stability, and the psychophysics of beer perception. But that's not what he's doing here. In the clip above, the "Pope of Foam," as Bamforth is otherwise known, gives you a quick overview of the beer-making process, describing everything from grinding the malt, to boiling the wort, to bottling with glass versus cans. Finally, the Pope gives you a hot tip: how to pick the freshest pint when you're at a pub.
If you want to go deeper into Bamforth's world, you can read his 2009 book: Beer: Tap into the Art and Science of Brewing. Or don't miss this previous post where a University of Nottingham scientist explains The Physics of Guinness Beer.