How to keep fresh chestnut fresh?
Fresh chestnut contains a lot of water, sugar and starch, which is easy to mildew or moth-eaten. We need to master certain fresh-keeping methods to keep chestnut longer. So how to preserve fresh chestnuts?
1. Use wooden barrels or wooden cases. Spread a layer of wet sand on the bottom of the barrel or wooden box (be careful not to stick your hands here), then mix the wet sand with chestnuts at the ratio of 2: 1, continue to spread the wet sand at the mouth of the barrel 6 cm, and then store it in a cool and dry place. This method can preserve chestnut until the next year's Qingming.
2. Put it in an earthenware pot. After the chestnuts are dried in the sun, they are put into a clay pot and sealed. /kloc-after 0/5 days, open the pot for air, and then keep it sealed. This fresh-keeping method can keep chestnut until the following Spring Festival.
3. Plastic bags are fresh. The bag is filled with 40%-50% wet sawdust, and the mouth of the plastic bag does not need to be sealed, and it can be stored for 3 months at room temperature. Or 60% wet sawdust. At this time, it needs to be sealed and stored at 8- 10℃, which can be stored until the following year, 65438+ 10.
4, bagged fresh. Dry fresh chestnut in a cool and ventilated place for 2-3 days, and then put it into a cloth bag. Note that the cloth bag must be breathable and must not be replaced by plastic bags. Hanging in a cool and ventilated place, shaking 1-2 times a day. This method can generally be stored for 4 months.
5. Sand burial. This method is generally suitable for the preservation of a large number of chestnuts. The method is to dry chestnut in the sun for 1-2 days, and then sell it with sand, paying attention to burying it deeply and tightly. This method can be preserved for 2-3 months.
6, refrigerator storage. Chestnut was soaked in cold salt water for 3-5 minutes, and then washed with natural cold boiled water for 1-2 days. Packed in plastic bags, tied into the mouth of the bag, and refrigerated in the refrigerator. The bag here is preferably a plastic bag to prevent the refrigerator from absorbing water from chestnut. This method can preserve chestnut 1 month. ...
How to preserve cooked chestnuts?
Nowadays, many people like to buy fried chestnuts directly on the street and eat them at home, but they often encounter the problem of endless food. At this time, how to preserve ripe chestnuts has become a big problem. How to preserve cooked chestnuts?
1, spread out and save. Cooked chestnut contains a certain amount of water and needs heat dissipation. Poor heat dissipation will lead to deterioration and mildew, so it needs to be spread out and dried to avoid sealing and preservation.
2. Put it in the refrigerator. If there is a refrigerator at home, it is recommended to put the cooked chestnuts in the refrigerator and reheat them next time. The disadvantage of this method is that repeated heating will affect the taste of chestnut.
PS: Chestnuts frozen in the refrigerator can be heated in the microwave oven, which will be delicious when taken out!
No matter which preservation method is adopted, it is best to eat it within one week. After a long time, it not only tastes bad, but also goes bad.
It should also be noted that if chestnut is found to be spoiled, do not eat it again, which will lead to poisoning.
What should I pay attention to when keeping chestnut fresh?
In order to preserve chestnut for a longer period of time, we should not only choose appropriate methods, but also pay attention to some treatments of chestnut before preservation. There are mainly the following precautions:
1, select the storage-resistant variety. The middle-late mature chestnut is relatively storable, and the northern varieties are always more storable than the southern ones.
2. Pay attention to the harvest time. The maturity time of chestnut is determined by the origin and variety. To harvest fully mature chestnuts, pay attention to the weather when harvesting. If it is rainy, dark blue, wet dew and other weather, it is not suitable for harvesting. The wrong harvesting time will not only affect the quality of chestnut itself, but also affect the storage time.
3. Avoid chestnut damage. Attention should be paid to the prevention and control of pests and diseases before harvesting, to disease prevention before storage, and to handle with care when transporting and storing chestnuts. Once the chestnut is damaged, the storage time will naturally change.
What factors are related to the decay and deterioration of chestnut?
When preserving chestnuts, we will find that despite various preventive measures and methods, chestnuts will still go bad. Why? The reason lies in the respiration of chestnut itself and the temperature, gas, moderation and microbial diseases in the storage environment.
Generally speaking, the more vigorous the respiration of chestnut itself, the shorter the storage time after harvest. The respiration of chestnut is also divided into aerobic respiration and anaerobic respiration. Aerobic respiration will release a lot of energy during storage, leading to mildew. Anaerobic respiration will produce a lot of harmful substances, which will deteriorate chestnut.
The temperature of storage environment is also a main reason that affects the storage time of chestnut. The higher the temperature, the faster the respiration of chestnut. Moreover, the mutation of storage environment will stimulate some active factors in chestnut and promote the respiration of chestnut.
Microorganisms are one of the main causes of chestnut storage rot. The generation of microorganisms is related to the humidity, temperature and air in the storage environment, so special attention should be paid to it.