Biluochun and Gaoshan Yunwu are both famous green tea varieties in China, with unique flavor and aroma. Their differences are mainly reflected in the following aspects:

1. Different places of origin: "Biluochun" is produced in Dongting Mountain area of Taihu Basin in Wuxi City, Jiangsu Province, while mountain fog is mainly produced in Wuyishan, Fujian Province and Shanyun Tea Area in Huangshan, Anhui Province.

2. Different raw materials: "Biluochun" takes one bud and two leaves as raw materials, and alpine clouds generally take buds as raw materials.

3. Different processing technology: "Biluochun" is made by a special process of baking first and then kneading, and kneading first and then baking, while Shanwu tea is made by a special process of softening and gently kneading.

4. Different appearance: Biluochun looks flat and curly, such as spiral, with green color; The mountain fog is flat and slender, rope-shaped, and the color is green.

5. Different taste: "Biluochun" tastes fresh and delicious, with a mixed taste of tea and flowers; The mountain cloud tastes soft and mellow, with high tea aroma and a touch of fruit aroma.

To sum up, the difference between "Biluochun" and mountain fog mainly lies in the origin, raw materials, processing technology, appearance and taste.