If that Hershey's Kiss is your last, researchers say it's likely to taste better. John Rose/NPR hide caption

itoggle caption John Rose/NPR

Farmers dry cacao beans in Uchiza, Peru, a file photo from 2008. Researchers are exploring the wild cacao bounty of Peru's Amazon Basin, part of an effort to jump-start the country's premium cacao industry.

Martin Mejia/AP hide caption

itoggle caption Martin Mejia/AP