The black tea sticks are tightly packed, the color is yellow and lustrous, the aroma is prominent (with fruit wood), the soup is dark yellow (orange, orange red) bright, the taste is mellow (mellow and smooth), and the bottom of the leaves is thick and complete. It has the functions of supplementing dietary nutrition, helping digestion, lowering blood fat, anti-oxidation, anti-cancer, anti-cancer, lowering blood pressure, lowering blood sugar, sterilizing anti-inflammatory, diuretic and detoxifying.