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How are Gastrodia elata processed and graded?
From early November to early April of the following year, Gastrodia elata is in its dormant period. During this period, Gastrodia elata can all be processed into finished medicinal material for sale. Generally, harvesting, planting and processing are done simultaneously, so that harvesting and planting are closely linked. The harvest period is divided into two seasons, winter and spring. The winter harvest is before the ground freezes, and the spring harvest is after the thaw and before sprouting (mid-April). To process the harvested Gastrodia elata, the following steps must be carried out: Grading: Jianma (arrow-shaped Gastrodia) varies in size. Grade 1 Gastrodia elata should be above 150 g; Grade 2 Gastrodia elata 70 g to 150 g; Grade 3 Gastrodia elata below 70 g; Grade 4 Gastrodia elata is damaged or insect-bored
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