3. Production process: The production technique of Keemun Black Tea is divided into two major parts: primary processing and refined processing. The primary processing includes processes such as withering, rolling, fermentation, and drying. The refined processing includes processes such as sieving, cutting, winnowing, picking, re-firing, and uniform piling.
4. Quality characteristics: The main characteristics are tight, fine, uniform and straight appearance, and dark and lustrous
color. According to the appearance and internal quality of the tea, it is classified into ritual tea, special tea, super
grade, grade one, grade two, grade three, grade four, grade five, grade six, and grade seven.
5. Value and efficacy: It contains rich nutrients such as riboflavin, folic acid, carotene, tocopherol, and plastoquinone.