Avoid Skunky Beer This Oktoberfest with the Help of Chemistry (image) American Chemical Society Share Print E-Mail Caption 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. Credit The American Chemical Society Usage Restrictions None Share Print E-Mail Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.