Much like Osmanthus Pouchong, Osmanthus Oolong tea evolved from jasmine tea. Traditional jasmine scented tea originally used green tea and jasmine flowers as raw materials, but over time, other floral varieties and tea types were introduced to the craft. In the late 19th century, Wu Fu-lao, a tea merchant from Fujian, came to Taiwan to found the “Yuanlong” tea factory, setting the precedent for making osmanthus tea using Taiwanese oolong as a base.