Edible fungus cryogenic preservation processing technology
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Once harvested, fresh mushrooms must be neatly discharged into small, short-sized containers and sent to the low-temperature workshop as soon as possible. Container volume is length, width and height (below) = (402,816) centimeters. The shape of the container is a turnover box, a solid plate at the bottom, and a circular hole with a preset diameter of about 2-3 centimeters around. There are retracted corner blocks at the bottom corners. In order to code high multi-layer. When the mushroom is harvested, it will be discharged smoothly, so that it will not cause head-to-tail contact, so as to avoid pollution; the temperature in the low-temperature workshop is 1°C-3°C, and the ordinary constant temperature cold storage can be used after transformation, together with other packaging containers are stored in the workshop. In order to completely cool down. The fresh mushrooms are boxed and placed separately after being moved into the workshop. They must not be stacked high in order to allow the mushrooms to fully cool. This is especially important for fresh mushrooms harvested at temperatures above 15°C. The finishing tools are: thin stainless steel knife or bamboo knife, and small package sealing, boxing and other equipment. First cut the base of the fresh mushroom with a knife to remove all dirt, base materials and other debris. Scales should be removed for a long time. Generally, no water washing is used, otherwise the product shelf life will be shortened. Immediately after grading the clean fresh mushrooms, they are discharged into a foam-lined container, which is then fully cooled and packaged. Cooling packaging: When the temperature inside the mushroom body cools below 3°C, it can be packed. Generally, it can be used as a box with a foamy texture. It is made into a single box about 5 centimeters high. Each box contains about 150 grams of fresh mushrooms. Some big cities have banned plastic packaging and can customize paper boxes. Can also be based on fresh mushroom varieties to determine the specifications of the box, such as coprinus comatus generally suitable for 16104 cm specifications of the packaging, Agaricus blazei is suitable for 15106 specifications, real oyster mushrooms, poplar mushrooms and other suitable 1684 specifications. According to the shape and size of the fresh mushroom, determine the discharge method. Then wrap the cling film. Put the small packaging box into the foam fresh-keeping box again. Each box can hold 36 boxes. Packing and transportation: As the preservation effect of the preservation box is excellent, the box-type packaging in the box is treated at a low temperature. Therefore, in the 5-12 hours, the quality of the mushrooms will not be degraded due to warming. Among them, Coprinus comatus and straw mushrooms will be the most difficult to preserve, but there will be no quality problems within 5 hours. Entering the supermarket: After entering the supermarket, the small package should be placed in the low-temperature display cabinet for sale. General shelf life up to 2-10 days.