Tieguanyin is oolong tea, a famous tea among oolong teas, but they are different in smell and color. Tieguanyin has a natural orchid fragrance and is very persistent, while other oolong teas will not have this taste. After brewing, most oolong teas are golden yellow, while Tieguanyin tea soup is yellow and green, so Tieguanyin will be mistaken for one of green teas.