Imperial Choice Premium Iron Buddha Tea Bags produce a richly roasted oolong tea based on Chinese legend. Iron Buddha Tea, or Ti Kuan Yin (also spelled Tieguanyin), is a legendary oolong tea from the Fujian province in China. It is one of China's most beloved oolongs. This deeply roasted blend removes the bitter sharpness encountered in most green teas, allowing you to soothe with the woody, full, and nutrient-enriched essence of the remaining tea leaves. It is a robust tea with a deep burnt red colour.