WASHINGTON, Sept. 29, 2014 -- Oktoberfest is here, and that means beer. And there's nothing worse than reaching for a cold one, taking that first sip and realizing your beer's been skunked: chemicals have reacted to form compounds that cause an awful, bitter taste. This week, Reactions explains why beers get skunky, and what you can do to keep your brews from going bad. Learn all about it at http://youtu.
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