Pleurotus ostreatus soft-pack frozen fresh-keeping technology

Selection of Raw Materials Fresh oyster mushrooms with no impurities, no soil, no mildew, and no aging were selected as raw materials for processing. The cullus were required to be intact and there were few cracks on the edge of the cap. After the harvest of fresh mushrooms, the nutrient components will naturally be lost, so it should not be stored for a long time as far as possible with the processing of harvesting.
Processing and rinsing: Firstly, the whole mushroom body is divided into individual entities by scissors, and then the culture material and the yellowing and aging parts of the mushroom body are cut off, dirt, firewood, broken leaves and other impurities are removed, and the mushroom body size and the old tenderness level are loaded. In the bamboo sieve. Place the processed mushroom body in a pool or tank and rinse it with tap water until no impurities are left. During the rinsing process, it should be lightly flipped to avoid breaking the mushroom body.
Let cool and add boiling water in a large pot to boil, then add washed fresh mushrooms. The amount of fresh mushrooms added is 20% to 30% of the amount of boiled water. It is advisable to use a hedge or a colander to stir in one direction. When the mushroom body is soft, it must be turned. After the water is opened, remove it from the large vat filled with cold water. The cooling water should be replaced frequently. After cooling, it is drained into the sieve and drained.
After the bag sealing and fixing, the fresh mushrooms are cooled and drained, and the mushroom body is directly packed in small bags. The large knife can be cut into several pieces, and then weighed 1,000 grams or 5000 grams respectively and loaded into 20 cm×30 cm×0. A non-toxic polyethylene food bag of 02 cm or 14 cm x 27 cm x 0.02 cm is sealed in a plastic bag sealer. Pay attention to the inner and outer walls of the bag mouth when placing the bag. If it is covered with water, it can be wiped clean gauze, otherwise it will result in lax sealing.
Freeze preservation preserves the mushroom bag in a plastic food box or wooden box (carton can also), and put it in a cold room (temperature is about -18°C). After cooling, it can be taken out for sale or deep processing at any time.

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