For future reference:
Real Simple magazine has published a guide to product expiration times. Also, here is the Table of Condiments That Periodically Go Bad, based on the periodic table of the elements. I have a version of this chart magnetized to my refrigerator.
Updated February 6, 2012 and originally published June 20, 2005. If you enjoyed this article, subscribe to the RSS feed or receive daily emails. Follow @ConsumerismComm on Twitter and visit our Facebook page for more updates.