In the process of making citron tea, the leaves of tea and citrus are very similar, also known as citron species and Sydney. It is one of the precious varieties of oolong tea, and its tea is mild. Citron tea is plump in appearance, heavy or round in curl, moist in color, sandy green or dark green, slightly shiny, rich or rich in aroma, with high-quality products such as Sydney aroma, top-grade aroma, mellow and sweet taste and obvious variety characteristics; Resistant to brewing, the soup is orange, bright and clear, with thick, soft and bright leaves and red edges.