Simple dehydration refrigeration technology of mushrooms
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1. Fresh mushroom harvesting and selection. Water spray was stopped 24 hours before harvest, and it was harvested when it was eight years old. After harvesting, it is selected and mixed. It requires a round and round shape. The mushroom meat is hypertrophy. The edge of the mushroom is fluffy. The umbrella is not open. The diameter of the cap is more than 3.8 cm. There is no soil, no miscellaneous, no disease, no defect, and the natural state of the mushroom is maintained. . 2. Dehumidify. Dehydration machine can be used to remove moisture, but also natural drying and dehumidification. When using a dehydrator to remove moisture, control the temperature and the amount of exhaust air to ensure quality. The method of natural drying is to spread the fresh mushrooms on the drying curtain with the bacteria pleats facing downwards and place them in a ventilated place under the sun. It is 3-4 hours in autumn and spring and 1-1.5 hours in summer. The deceptive standard after dehydration is that the hand-squeezed stipe has no moist sensation and the bacterial folds slightly contract. 3. Grading selection. After the dehumidified fresh mushrooms are sorted by size, they are generally divided into three grades: 3.8cm, 5cm, and 8cm. When selected, the oyster mushrooms such as parasols, deformities, and discoloration are removed and packed in special plastic baskets according to specifications. 10 kg per basket. The goods listed on the day or the following day will be shipped directly to small trays according to market specifications. 4. Storage preservation. Grade selected fresh mushrooms, timely sent to the cold storage preservation, cold storage temperature of 1-4 °C. In order to prevent the clipper from being browned, the handle of the mushroom is not cut before storage, and it is determined that the handle is trimmed at a low temperature for 8 to 10 hours before shipment. 5. Packing shipment. It is packaged in a special foam box in the cold room, lined with transparent non-toxic film, and used for special external cartons. Each box is usually 5 kg or 10 kg. After packaging, it must be shipped in a refrigerated truck in time. The preservation period is generally 10 days.