First, harvesting requirements. Day lily has the best quality within 4 hours before flowering. Premature picking yields are low, and blacks appear after processing; late picking and bud opening will affect product quality. Harvesting standards should be based on: full buds, yellow-green color; longitudinal grooves on flower buds are already evident, honey juice is also significantly reduced. Second, storage characteristics. Fresh products are not resistant to storage. It can be stored for 1 week at 0-5°C and above 95% relative humidity. Third, processing methods. Lilies should be dried immediately after harvest. Blasts are used to kill cells and then dehydrated. Avoid using sulfur smoked. There are two ways to dry it: 1. Artificial drying: fresh products steamed with steamer for 10-30 minutes; can also be boiled in boiling water, when the flower buds become soft, the small water droplets on the cloth, the color from the yellow-green to yellow, take out the spread, after cooling , and then put it in the drying room or electric baking room. The initial temperature of the drying room is 30°C, and the final temperature is 50-60°C. It needs to be maintained for 18 hours. Finally, it is sealed in plastic film bags. 2. Natural drying: fresh products are put into ventilated place for a few hours after being blanched, and then put on the mat for 2-3 days exposure. When the moisture content drops to 15-16%, they are put away and used plastic film. Bag sealed package. Fourth, product quality requirements. Bud complete, dry, bright yellow color; no mildew, no insects, no impurities; boxes, baskets, bags packaging. Hebei Tang County Agricultural Bureau
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Dried lily processing