Detailed Explanation of Key Techniques for Harvesting and Processing Polygonatum
Polygonatum can be harvested in either spring or autumn, with the best quality obtained from harvests in late autumn and early winter. After digging, remove the stems, leaves, fibrous roots, soil, sand and impurities; large ones can be split into 2 or 3 sections and placed in a steamer or wooden rice steamer to steam for about 12 hours, until they appear glossy and moist, then take them out and sun-dry or oven-dry (requires no smoke and low heat); or place them in water, boil, then remove and sun-dry or oven-dry. However, processing by the steaming method is better (after steaming it is prepared Polygonatum, while after boiling in water and sun-drying it is raw Polygonatum).
Polygonatum can be harvested in either spring or autumn, with the best quality obtained from harvests in late autumn and early winter. After digging, remove the stems, leaves, fibrous roots, soil, sand and impurities; large ones can be split into 2 or 3 sections and placed in a steamer or wooden rice steamer to steam for about 12 hours, until they appear glossy and moist, then take them out and sun-dry or oven-dry (requires no smoke and low heat); or place them in water, boil, then remove and sun-dry or oven-dry. However, processing by the steaming method is better (after steaming it is prepared Polygonatum, while after boiling in water and sun-drying it is raw Polygonatum).