1, salt water to save fresh mushrooms

You want to buy back fresh mushrooms to keep fresh, you can put it in the water to add the right amount of salt, for soaking, after soaking, remove the water, and then loaded into a plastic bag, stored in the refrigerator freezer, can be saved for more than a dozen days without deterioration.

2, frozen preservation of fresh mushrooms

Fresh mushrooms can be purchased after the freezing method for preservation, the best way to deal with the fresh mushrooms in the refrigerator directly in the freezer, twenty-four hours after the removal, and then melt, so that the paper to the moisture sucked away, and then put the fresh mushrooms into the preservation of the bag, directly to the freezing method, can be preserved for a long time, when consumed, take out of the melting! You can keep them for a long time, and when you eat them, take them out and melt them.

3, pickling preservation of fresh mushrooms

We usually save fresh mushrooms, want to keep it fresh, you can choose a non-ferrous container, the fresh mushrooms a little bit of drying, and then put the mushrooms into the inside, pay attention to, set a layer of mushrooms should be sprinkled with a layer of salt. Then add another layer of mushrooms and another layer of salt. Finally, seal the container and put it in a cool place, you can keep the mushrooms for a year without spoiling.

The storage characteristics of mushrooms

Mushrooms are rich in amino acids and protein, and have a delicious flavor. However, mushrooms have strong respiration after picking, and they will soon open umbrella, brown, change flavor and deteriorate in quality at room temperature, so they can only be stored for a short period of time. Dried mushrooms are easy to preserve, but the nutritional value decreases, and untimely processing will cause serious losses. Therefore, measures should be taken to prevent the quality of mushrooms from deteriorating before storage, transportation, sale and processing. There are many cultivars of mushrooms, the common ones are flat mushrooms, shiitake mushrooms, Agaricus bisporus, enoki mushrooms, cocktail mushrooms and so on.

Mushroom storage conditions

The suitable conditions for mushroom storage are 0℃ and 95% relative humidity. The water loss of mushrooms is related to the black stalk and open umbrella, so the water loss can be reduced by packing with film or keeping the relative humidity higher than 95%. Air-conditioned storage can inhibit the browning of mushrooms, control at 2--4% oxygen and 5--10% carbon dioxide is good for keeping the white color of mushrooms and prolonging the storage life. The use of brine, citric acid, ascorbic acid, sulfur dioxide or steam heat treatment can passivate the polyphenol oxidase activity and prevent enzymatic browning; the use of metal containers for mushrooms should be avoided in storage and transportation to prevent non-enzymatic browning.

Processing methods

1.air-conditioned storage

(1)Spontaneous air-conditioning of mushrooms in 0.04--0.06 mm thick polyethylene bags, through the mushroom's own respiration caused by the bag of low-oxygen and high carbon dioxide environment. The bag should not be too large, generally 2 - 4 pounds of holding capacity is appropriate, the quality remains unchanged at 0 ℃ for 5 days.

(2) carbon dioxide filled mushrooms in 0.04 - 0.06 mm thick polyethylene bags, filled with nitrogen and carbon dioxide, and keep it at 2 - 4% and 5 - 10%, respectively, at 0 ℃ can be suppressed under the umbrella and browning.

(3)Vacuum packing the mushrooms in 0.06--0.08 mm thick polyethylene bags, vacuuming to reduce the oxygen content, can be maintained at 0 ℃ for 7 days.

2. Ice storage method

In transportation with ice to cool the mushroom body, in the packaging container pad a layer of plastic film, the bottom of the 4 - 6 cm thick crushed ice, placed in the middle of the ice bag, placed around the mushroom, loaded eighty percent full of the film around the inward fold, the film and then cover the thickness of about 5 cm of crushed ice, and finally covered with a lid for transportation.

3. Cylinder storage method

Put 3--4 centimeters deep cold water at the bottom of the washed cylinder, set up a wooden frame, put the mushrooms on it, and then seal it with plastic film, and put it into storage under low temperature.

4. Drug treatment

(1) Brine. After picking, mushrooms can be washed with 0.6% cold brine and soaked for 10 minutes, which can play the role of pre-cooling and preventing browning, and drained for storage. If the salt water is washed and then rinsed with 0.1% ascorbic acid or 0.1% citric acid for storage, the effect is better. Drain and refrigerate in a plastic bag.

(2) Sodium metabisulfite. After harvesting with 0.02% sodium metabisulfite to wash away debris, and then put into 0.05% sodium metabisulfite for half an hour, wash with water, drain and store, have a good color protection.