Valentine's Day is a time to celebrate romance and love, with flowers, cards and of course chocolate. But if only the very finest chocolate will do for your sweetie, you may be paying a premium price for not-so-premium chocolate. Watch as plant scientists put high-quality chocolate to the test. Is it really what you think?

Encoded with permission for digital streaming by Infobase on April 20, 2014. Learn360 is distributed by Infobase for Films for the Humanities & Sciences, Cambridge Educational, Meridian Education, and Shopware.

Authenticating Premium Chocolate (2:00).