How to keep Chinese cabbage fresh in winter? How to store Chinese cabbage in winter

Cabbage is a kind of green vegetable that we eat most often, it is abundant in the winter, and because it eats the most extensive crowd, so as long as it is winter, every household is accustomed to buy more Chinese cabbage and store it at home, and when you want to eat, you just need to take it out and make it. However, there are many things that need our attention in the storage of cabbage, such as the problem of cabbage to prevent the problem of heating in the early stage and freezing in the later stage, we should also pay attention to the situation of cabbage at any time according to the temperature change, check whether there are rotten vegetables and dispose of the rotten vegetables in time, and it also needs to be stored in a cool and ventilated place. So if we live in a building and want to store cabbage in the winter, how do we do it?

Next, I will give you a few tips and teach you how to store cabbage in the building in winter.

Step 1: Choose a dry leeward and well-drained place, and determine the size of the site according to the amount of Chinese cabbage. You can also put food in the hallway or in an unheated house. Or turn the cabbage over once every two or three days.

Step 2: After we buy back the cabbage, we need to dry it first, and then stack the roots of the cabbage inward into a single stack in the corridor. When the temperature is around 0 degrees Celsius, you don't need a cover during the day, just cover the tuyere with something, and put up a straw curtain at night.

If the temperature drops to about minus 10 degrees, the dish should be covered tightly and thickly covered at night, and then the wind can be blown for a while at noon.

Step 3: Cabbage is stored for a long time, and some are prone to downy mildew or rot and deterioration, so these diseased vegetables should be picked out in time, so as not to affect other good cabbage and cause the group of vegetables to rot and get sick.

Storing Chinese cabbage in winter has become a major event for many citizens in winter, and people store cabbage in different ways, with a large quilt wrapped, there are grass curtains...But experienced old people remind you that it is not advisable to wrap cabbage in plastic bags for the winter.

Recently, in some communities in the city, the author often sees some "peculiar" Chinese cabbage, which are wrapped in different plastic bags by the owner, and some cabbages are even applied to two, one by one is wrapped in airtight. A resident who was putting a plastic bag on the cabbage told me that he was afraid that the Chinese cabbage he had just bought would be frozen, so he thought about "wearing" a layer of "clothes" on the cabbage, maybe it could prevent it from drying out at the beginning of spring. He said:

It looks pretty good now, but I don't know if it can be preserved well? ”

The author specially consulted several experienced old people and ** cabbage farmer. They believe that when buying and storing cabbage, it is necessary to first retain part of the residual leaves on the outside of the cabbage, which can form a "protective film" after natural air drying to keep the water inside the cabbage from being lost. Store the cabbage in a cool and ventilated place, and pour it up and down after a while to let the cabbage "breathe".

When the temperature drops, you can cover it with straw mats, sacks, etc., but do not wrap cabbage separately with paper, plastic products and other items, like the practice of citizens wrapping each cabbage in a plastic bag for the winter is not advisable, it is easy to accelerate the decay of cabbage.

Chinese cabbage can be stored in dug cellars. The optimal temperature was 0 5, and the temperature was higher than 5, and the respiration of Chinese cabbage was enhanced, and it was easy to get rid of the gang and rot. Temperatures below -2 will rot due to frost.

The relative humidity of Chinese cabbage storage is 80%-90%. The air humidity is low, and the Chinese cabbage is easy to lose water and dry up.

Medium and late maturing varieties of Chinese cabbage stored in winter should be selected with green leaf color, low water content and long growth period, and harvested in a timely manner before and after light snow. During harvesting, mechanical damage should be avoided as much as possible, and part of the residual leaves outside the cabbage should be retained, which can form a "protective film" after natural air drying to keep the water inside the cabbage from being lost. And remove the diseased and residual plants, non-core plants and core connected plants.

In the absence of a strong cold snap, it can be cooled in the shade for 5 to 7 days to cool down the vegetable plants and evaporate part of the water vapor, so as to avoid the initial decontamination of the cellar.

It is put in the cellar, or buried in soil, and then dug up when it is time to eat, and the rotten leaves are removed, so that it is quite fresh, and this is the case in the countryside.

Winter storage of Chinese cabbage can be stored at home, put into the cellar, mechanical refrigeration storage, ventilation storage, the specific introduction is as follows:

1. Home storage method, dry the Chinese cabbage outdoors for 2-3 days, and it is advisable to wilt and not easy to break. Stacked outdoors and stored in an environment of around 0. When the temperature is lower than -5, cover it with cold-proof items.

When stacking, first lay a wooden board on the ground, the leaf balls are outward, the roots are stacked inward, and the initial inversion is once a week to tear off the rotten leaves and remove the diseased plants to prevent rot.

2. Cellaring method, after harvesting, Chinese cabbage is sent to the vicinity of the vegetable cellar, stacked in a leeward and sunny place, and stored for 10-20 days. When the outside temperature is around -3, enter the cellar in time. Remove the roots, soil, and rotten leaves before entering the cellar.

At the beginning of the cellar, pour the vegetables every 3 days to prevent the temperature from getting too high. The poured vegetables should be turned over layer by layer, and the rotten leaves and deganged should be cleaned up. As the outside temperature decreases, prolong the pouring cycle, and at the same time seal the cellar mouth tightly to maintain the temperature in the cellar.

3. Mechanical refrigeration storage, the pretreated Chinese cabbage is loaded into wicker baskets or crates, stacked into the cold storage, or directly stacked in the cold storage. The storage temperature is kept at 0, the relative humidity is kept at 85-90, and the inspection is carried out regularly. This method can adjust the temperature and humidity, easy to manage, and the storage period is longer, but the equipment investment is also larger, and it is also a storage method of winter cabbage for different needs.

4. Ventilation storage, bulk commercial vegetables are mostly used to store Chinese cabbage in winter. In order to improve the utilization rate of the warehouse and facilitate management, the Chinese cabbage can be placed on the fixed vegetable rack to facilitate ventilation, heat dissipation and viewing, and the number of pouring vegetables is also less. There are also stacking baskets instead of vegetable racks, that is, Chinese cabbage is packed into wicker baskets or crates and stacked into stacks.

Notes:

1. According to the climate, the storage of Chinese cabbage should prevent the problem of heating in the early stage and freezing in the later stage.

2. Before storage, the leaves on the outer layer of Chinese cabbage should be torn off, and then slightly dried, and when the outer layer of leaves is wilted, it can be stacked with a layer of roots facing inward and a layer of roots facing outward, so as to avoid rottenness.

1. Burial method.

If the minimum temperature is -10 -4, the burial method, also known as trenching, can be used. This method is generally stored on site, saving labor and effort. False plant storage is to uproot the cabbage, and the depth of a single plant in the ditch varies according to the temperature in different places.

2. Cold storage storage.

In recent years, cold storage has gradually been widely used in vegetable pre-cooling and preservation. Chinese cabbage is stored in cold storage, and the storage temperature is controlled by mechanical transportation of cold air, which can more effectively control the storage environment, but also improves the storage cost, which is suitable for commercial vegetable storage.

Compared with traditional storage, cold storage can effectively delay the water loss of Chinese cabbage, maintain the chlorophyll content, better inhibit the activities of related enzymes involved in the chlorophyll degradation pathway, delay the plant senescence process, and reduce storage loss.

3. Forced ventilation storage.

In order to effectively control the storage microclimate environment, reduce the accumulation of ethylene during storage, and improve the rate of commercial vegetables, forced ventilation storage technology has also been developed in various places. The feature is that on the basis of the original vegetable cellar, a forced ventilation system is added, which is composed of a fan, an air supply duct, a uniform air space, a yard vegetable space and an air outlet.

The forced ventilation is used to regulate the suitable temperature and humidity environment for the storage of Chinese cabbage, so as to realize the whole storage period without pouring vegetables, save labor, and the management of the whole storage period from manual to mechanized. Compared with the traditional method, forced ventilation effectively excluded the ethylene produced by Chinese cabbage itself, so that the ethylene concentration was controlled below the action concentration. At the same time, it also has the advantages of fast cooling, stable vegetable temperature and controllable humidity.

The use of this technology for 3 months can reduce the loss by 10% and 20% compared with the traditional storage, and effectively improve the quality of stored vegetables. At present, this method has been widely promoted and applied in various places.

4. Controlled atmosphere storage.

The principle of modified atmosphere storage is a storage and preservation method that inhibits the respiration of fruits and vegetables by changing or adjusting the concentration of gas components in the storage environment, mainly including the concentration of N2, O2, CO2 and other gases on the basis of mechanical refrigeration. In recent years, the design of controlled atmosphere storage in China has the advantages of low cost, low operating cost and convenient management compared with similar foreign products.

5. Cellaring. Cellaring is mainly used in North China, Northeast and Northwest China, according to the difference in temperature in various places when the cellar is divided into storage, it is necessary to pre-store first, in order to remove the field heat of the vegetable body, to avoid a sharp rise in cellar temperature after entering the cellar. Under the premise that the Chinese cabbage is not frozen, the later the cellar time, the better, because the cellar temperature is too high will cause rot and detachment.

Chinese cabbage is rich in vitamins, fiber and minerals, rich in nutrition, delicious flavor, and various ways to eat, known as the "king of dishes", and eating more Chinese cabbage is very beneficial to health. Whenever winter comes, people living in the north will keep some Chinese cabbage in their homes, and they will spend the whole winter with Chinese cabbage as the main dish. So how to preserve Chinese cabbage so that Chinese cabbage is not damaged?

The first method: the oldest way of storage - cellaring. In the early days, when there was no cold storage, vendors would dig a large cellar to store cabbage.

Now, if you live in the countryside, you can dig a 1-meter-deep pit in the shade of the courtyard wall to make a cellar, and when the outside temperature drops below freezing, put the Chinese cabbage in the cellar and store it. This is the wisdom left by the old generation, so that the cabbage will be green next year, not rotten, and the leaves will not dry. Here I would like to remind everyone that before burying the cabbage, the rotten leaves and yellow leaves of the cabbage should be removed, and the roots should be dried facing south for a few days.

Depending on the weather conditions and the time of exposure, decide how long to dry, so that the cabbage can be stored for a longer time after it is buried.

The second method: buy the Chinese cabbage at home and remove the rotten leaves and yellow leaves, and the good cabbage leaves must not be removed, because when storing, these leaves can help the cabbage lock in moisture. After removing the dried yellow leaves, put the roots of the cabbage facing south in the sun for 3-4 days, and flip the cabbage several times in the middle, so that the cabbage will not appear sick during storage.

Take a larger carton, dig a few large holes with a diameter of about 3 cm in the carton, then put the dried cabbage in it, and store the carton in a cool and ventilated place. This method is more suitable for people who live in the city and have no way to dig cellars, but it is also very practical.

The third method: like the above method, don't be in a hurry to store the cabbage when you buy it, and dry the cabbage first. If you live in the countryside, you can put the cabbage vertically under the south wall and fence it with corn stalks.

If you live in a building at home, put the Chinese cabbage outside the balcony, put it vertically, and pour the Chinese cabbage once in a while to let the cabbage breathe. Put the dried leaves and the leaves plucked off the surface, cover the cabbage, and control the temperature at 0-2 degrees, which is the most suitable temperature for preserving the Chinese cabbage.

Preservation of Chinese cabbage is generally placed in the cellar, followed by a cool place, and another way is to make sauerkraut, which can be covered with a large quilt outdoors to prevent it from being frozen.

1. Dry place, otherwise it will be rotten. 2. Put it under the cellar, it is more natural to be warm. 3. Cover it with a cloth and it will be preserved better.

Fresh Chinese cabbage must be dried in the sun for a day or two when bought, and the moisture on the surface of the cabbage should be dried, so that it is easy to preserve, and the cabbage cannot be placed in a place that is too hot or too cold, it is easy to rot if it is too hot, and it will freeze if it is too cold and cannot be eaten.

Keep in the cellar and moisturize with moisture

Cabbage is an indispensable vegetable in winter. Storing cabbage is also a ritual. Generally harvested cabbage can be eaten until the end of the year. In some places, cabbage stored in the winter is harvested at the beginning of winter, and some cabbage does not ripen until light snow.

Cabbage has large leaves and a lot of moisture, so it needs to be stored at a certain temperature and humidity. During storage, it is very common for dry burning, peeling, and rotten leaves. The storage time of different varieties and different planting methods is different, and the storage time of dark green cabbage varieties is longer.

There are many ways to store cabbage. We can choose the appropriate storage method from the local temperature and manually.

1.Cover with plastic film.

This is a relatively simple method. Cabbage is directly covered with insulation, not harvested in the ground. If the plastic film must be thicker and cover two or three layers, the plastic film must be pressed around to prevent the wind from blowing away.

If it is cabbage with bunches of leaves, the antifreeze effect will be better. This method does not need to worry about the leaves drying up after losing water as its roots also absorb nutrients.

Although this method is relatively simple and labor-saving, the storage time is relatively short, and it will get colder and colder in winter. If the temperature is lower than 5, there will be a risk of frost damage, and the leaves outside will be frozen to death, so. If the planting area is small and the weather is not too cold, it is more suitable to store cabbage in this way.

2.Dig a ditch.

When the cabbage is seven to eight ripe, all the cabbage is harvested. Then dig a trench that is a little deeper than the height of the cabbage. Then put the cabbage in it one by one, just like the cabbage grows in the ditch.

The ditch does not need to be too big, and it is dug according to the number of dishes. This method can be saved for many years and works well. It used to be used a lot, but this method is more labor-intensive than the first one.

If there is open space in the yard, you can try to shoot the manuscript.

3.Pile them together.

This method is relatively simple. After the cabbage is harvested, it is slightly dried to reduce the surface moisture, and then stacked one by one in a low-temperature and humid environment. If the temperature is too high, there will be peeling and leaf rot, which is more appropriate at 0 2.

We generally use the first method, which is simple and convenient, and does not require too many skills, as long as the temperature is not too low. If you grow a little cabbage, you can eat it all winter. Even if the leaves on the outside are broken and dry, the inner grandson is still intact and tastes fresh.