Spread green in time. Chrysanthemum rice should be shipped with ventilation devices such as laundry baskets after picking, and it is strictly forbidden to store it in sealed plastic bags. During transportation, it is necessary to prevent trampling, heavy pressure, heating and discoloration; Chrysanthemum buds should be spread out in time after entering the factory, and placed on a well-ventilated, dry and clean cement floor with a thickness of no more than 10 cm, so that some moisture can be naturally volatilized and impurities can be sorted out, which is convenient for processing.

Fixing and drying. Chrysanthemum buds can be fixed after spreading for 2-3 hours. The temperature is between 150 ~ 200℃. After inactivation, it needs to be spread and cooled, and then dried in a hot air oven, with the thickness not exceeding 3 cm. 1-2 hours When the surface of chrysanthemum rice is dry, take it out and put it in a box and store it for more than 2 hours. When the moisture in the core of chrysanthemum rice permeates to the outer layer, it is dried for the second time until it is completely dried. The standard is water content.

Chrysanthemum rice should be washed again after drying and packaged according to the standard classification. Storage warehouses should be moisture-proof and light-proof, ventilated and dry to prevent pollution and deterioration.