Purple tea is starting to become popular in Kenya and in other countries although it is twice the price of traditional black tea. Kenya is the largest producer of black tea in the world. But black tea prices are low right now. Kenyan researchers developed the purple tea and released it to farmers in 2011. Tea farming is one of the largest industries in the Kenyan economy. The farmers hope purple tea, and other new varieties, can help them make more money from their land. Other new kinds of tea, like the purple tea, are getting popular. Some people believe the new kinds are healthier than black tea.