1, the appearance characteristics of "Biluochun". The rope is slender and curled in a spiral shape, and the whole body is fluffy. The color is silver green, dark green and windy. Tea buds are tender and complete, petiole-free, "trouser legs", yellow leaves and old pieces.

2. The color characteristics of Biluochun. Authentic Dongting Biluochun is shiny, with green and yellow colors, while other Biluochun is dim, but green is yellow, mainly dull.

3. Aroma characteristics of Biluochun. Dongting Biluochun is rich in fragrance, fragrant with flowers and fruits, which is mainly related to the unique soil and water in Dongting. The other "Biluochun" is not fragrant enough, because it is a new tea with a little fragrance, but it has no fragrance and a fruity fragrance. Biluochun in other places has Austrian country flavor and green leaf flavor.