Tie Guan Yin (铁观音) is a type of oolong tea originating from the Fujian province in China. It is one of the most famous and highly valued teas in China, and is named after the Iron Goddess of Mercy, a Buddhist deity. Tie Guan Yin is known for its floral fragrance and sweet taste, and is famous for its ability to be steeped multiple times. It is also considered to have numerous health benefits, such as improving digestion, reducing stress, and enhancing the immune system.