How to keep fresh vegetables and fruits fresh?

1, frozen fruit is not washed.

It's best to wrap it in a paper bag first to prevent the water from evaporating. If there is no paper bag, plastic tape can be used, but some small holes should be punched in the plastic tape to prevent the evaporated water from becoming the source of microbial growth.

2. Pay attention to the storage temperature

The suitable storage temperature and shelf life of each fruit are different, while the storage temperature of general refrigerator is 3-6℃. If this temperature is not the optimum temperature, their shelf life will be shortened. Therefore, it is best to eat the fruit you bought as soon as possible, usually within a week.

3. For some tropical fruits, such as bananas, pineapples, papaya, mangoes, etc. Their optimum storage temperature is relatively high, so it is not necessary to put them in the refrigerator. As long as it is kept in a cool place at room temperature. If the storage temperature is too low, the peel will droop or produce spots or browning. Bananas, for example, will soon turn black in the refrigerator.

4. Some fruits will produce ethylene during storage, which has the effect of ripening. Such as apples, pears, bananas and so on. It is best to store it separately from other fruits, so as not to accelerate the ripening and aging of fruits and affect the quality.

If you don't eat the fruit immediately after peeling, the air will oxidize the fruit after a while, making its surface light brown, which is very ugly. If the peeled fruit is soaked in cold boiled water, it can not only prevent oxidation, maintain the original color, but also make the fruit brittle and sweet.

Vegetable preservation

1, the most important thing to keep leafy vegetables fresh is to keep water and avoid leaf rot. The easiest way is to use old newspapers, spray some water on the leaves, then wrap them in newspapers and put them in the refrigerator with their roots down, which can effectively prolong the storage time and keep them fresh.

2. Vegetables such as leeks and garlic yellow bought in winter can be wrapped in fresh Chinese cabbage leaves and stored in a cool place for a few days if they can't be eaten at one time.

Lettuce will gradually become soft and discolored as long as it is left for a period of time. You can remove the cabbage heart, then put a wet tissue in the cabbage heart to make the lettuce absorb water, take it out when the tissue is dry, and then put the lettuce in a fresh-keeping bag for refrigeration.

4, garlic, onions, ginger, peppers are mostly condiments, and it is best to keep the original appearance when preserved. Garlic is preserved in a similar way to onion. It can be placed in a net bag and hung in a cool and ventilated place indoors, or it can be placed in a special ceramic cylinder with air holes. Ginger is divided into old ginger and young ginger. Ginger is not suitable for cold storage, so it can be placed in ventilated places and sand. Young ginger should be wrapped in plastic wrap and kept in the refrigerator.

Extended data

Taboo:

1. Wash fruits and vegetables before storage.

Many people are used to washing fruits and vegetables before putting them in the refrigerator, thinking that this is more conducive to storage. In fact, this method is not worth recommending. Because fruits and vegetables stored in water are easy to breed bacteria, especially leafy vegetables, if they are sealed too tightly and have too much water, they are more likely to rot, deteriorate and lose their leaves.

In fact, bringing some wet soil is more conducive to the preservation of vegetables. Before preservation, just remove the discolored and rotten leaves. In order not to pollute the refrigerator, it can be wrapped in paper or stored in a perforated bag. Lettuce, cabbage and other vegetables should be stored in the refrigerator with the outermost leaves, torn off when eating, and washed with clear water.

2. Store all fruits and vegetables together.

Some people think that there is no need to classify fruits and vegetables, and there is no difference between storing them separately and putting them together. In fact, whether it is stored at room temperature or refrigerated, we should pay attention to keeping a certain distance between different fruits and vegetables. Because many fruits and vegetables will release ethylene, such as apples, pears, papaya, bananas and so on. And ethylene will accelerate the ripening and aging of fruits and vegetables. If other fruits and vegetables are put together with such fruits and vegetables, it is easy to age and rot earlier.

Different kinds of fruits and vegetables are best packaged and placed separately. In addition, when storing bananas, it is best to wrap the stems of bananas with plastic wrap, which can reduce the release of ethylene and delay deterioration.

3. Keep fruits and vegetables completely sealed.

Many people think that fruits and vegetables can only be kept in a "sterile" environment if they are wrapped tightly with plastic wrap or put in sealed plastic bags, and the fresh-keeping effect will be good. In fact, fruits and vegetables also need space, breathing and breathing. Tight seals will accelerate their corruption.

Reference People's Network-Tips for Keeping Vegetables and Fruits Fresh in the Kitchen