Fruit is a food that many people love to eat. There are many types of fruit. Generally, after purchasing fruit, you have to keep it at home for a period of time before eating it. Fruit has a lot of water and is prone to deterioration if not stored properly. Different fruits have different preservation methods, so how to preserve fruits correctly? What are the ways to preserve different fruits?
1. Which fruits should not be stored in the refrigerator
1. Bananas
If bananas are stored below 12°C, they will turn black and rot. , and the temperature in the refrigerator compartment is zero degrees. Some tropical fruits that are not ripe when they are bought back, such as green bananas, are less cold-resistant, so it is best not to put them in the refrigerator. Otherwise, not only will they not ripen properly, they will rot and become inedible.
2. Tomatoes
After tomatoes are frozen at low temperature, the meat will be blister-like, soft, rotten or falling apart. There will also be black spots on the surface, undercooking, and no freshness. smell, and may even become rancid. It is recommended to store it in a dry and low-temperature place to preserve the flavor to the greatest extent.
3. Durian
Durian is late-ripening and should be stored in a cool place. The mature fruit will crack. At this time, the pulp can be taken out and placed in a cool place to keep it fresh. Store it in the refrigerator after being bagged, and it will have the texture of ice cream after being chilled. If the pulp becomes rancid, it means the durian has gone bad and should not be eaten anymore.
4. Mango
Mango is a tropical fruit that likes drought and is most afraid of low temperatures, so it is best not to put mangoes in the refrigerator, otherwise the peel will turn black, so every It is not advisable to buy too many mangoes at one time. If you cannot eat them all at once, it is best to choose some slightly green mangoes when purchasing and let them mature naturally at 20-25°C.
5. Papaya
Papaya is also a fruit that cannot be stored in the refrigerator, because as long as papaya comes into contact with water, black spots will appear. Although the refrigerator has the effect of absorbing water, once it is When you take it out of the refrigerator, the temperature difference will cause moisture to appear on the surface of the papaya, causing stale black spots to appear. The correct way to preserve papaya is to wrap it in newspaper and store it in a cool place. In this way, papaya can be stored for a long time and remains fresh.
6. Rambutan
When rambutan is stored at 1℃-2℃, the color of the outer peel will darken, and the endocarp will have spots that look like burns. , such fruits are often no longer edible. Rambutan should be bought and eaten immediately. It should not be stored for a long time. It will change color and form spots after 3 days at room temperature.
7. Lychees
If fresh lychees are left in an environment of 0℃ for one day, the skin will turn black and the pulp will change flavor. You can cut off the lychee stems that are too long, put the lychees into a plastic bag, tie the bag tightly, and place it in a cool place. If possible, the plastic bag containing lychees can be immersed in water. In this way, the color, aroma and taste of lychees remain unchanged after several days.
8. Pineapple
When pineapple is stored at 6℃-10℃, not only the peel will change color, but the pulp will also become water-soaked. It is best to store in a dark and cool place.
9. Longan
When longan is stored at 1℃-2℃, the color of the outer peel will darken and the endocarp will have spots like burns. Such fruits often cannot be reused. have eaten.
Tropical fruits are best stored in a dark and cool place. If it must be placed in the refrigerator, it should be placed in a vegetable and fruit tank with a higher temperature. It is best not to store it for more than two days. After tropical fruits are taken out of the refrigerator, they will deteriorate faster at normal temperatures, so they should be eaten as soon as possible.
2. How to preserve fruits correctly
The daily preservation of fruits can be divided into the following four categories:
The first category, do not put it in the refrigerator, otherwise it will Frostbite. Such as: banana, star fruit, loquat, etc.
The second type can be placed in the refrigerator, but it must be ripened first (that is, unripe fruits cannot be placed in the refrigerator). Such as: durian, mango, sugar apple, passion fruit, persimmon, papaya, etc.
The third category must be placed in the refrigerator to preserve it for a long time. Such as: peaches, mulberries, plums, lychees, longan, rambutan, cherries, chestnuts, guava, grapes, pears, strawberries, mangosteen, dragon fruit, melon, grapefruit, etc.
Category 4, can be stored at room temperature or refrigerated. Such as: lemon, pineapple, grape, orange, olive, jujube, apple, watermelon, orange, coconut, grapefruit, sugar cane, etc.
After many families buy fruits, they clean them and store them in the refrigerator. They think this is hygienic and can keep the fruits and vegetables fresh. In fact, it is not scientific to do so. The humidity in the refrigerator is relatively high, which can easily become a breeding ground for bacteria. Generally, fruits and vegetables have a layer of wax on their surface, which protects them from microorganisms. After fruits and vegetables are washed, especially after being cleaned with detergent, the waxy layer on the surface will be destroyed, and bacteria can easily enter the inside of the fruits and vegetables, causing the fruits and vegetables to deteriorate and rot. Eating them can cause acute enteritis or even dysentery.
3. Taboos on common fruits
1. Watermelon
The following groups of people should eat less watermelon:
First, watermelon The glycemic index is on the high side, so diabetics should eat less to avoid blood sugar fluctuations;
Secondly, watermelon is a raw and cold food. People with indigestion and gastrointestinal deficiency are more likely to damage the spleen and stomach and suffer from bloating if they eat too much. , diarrhea, polyuria and other symptoms;
Thirdly, watermelon contains high water content. If people with renal insufficiency take in too much water, it will be difficult to excrete it from the body, which will not only aggravate edema, but also easily This leads to an increase in blood volume in the body and induces acute heart failure.
2. Peaches
Peach is a warm fruit. If you have symptoms of internal heat such as dry mouth, sore throat, nosebleeds, etc., it is best to eat less or not at all to avoid aggravating the internal heat. symptom.
In addition, patients with multiple illnesses and weak gastrointestinal functions should not eat too many peaches.
Patients with skin diseases and prone to sores and boils should eat as little peaches as possible.
Some people are allergic to peach hairs. They can soak in salt water or use a brush to clean the skin before eating.
3. Lychee
Fructose will stimulate the secretion of insulin, which may cause hypoglycemia reactions, leading to symptoms of hypoglycemia such as dizziness, palpitation, paleness, dizziness, and fainting.
It is not advisable to eat large amounts of lychees on an empty stomach. It is safer to eat them between meals.
In addition, traditional Chinese medicine believes that lychees are warm in nature, and eating more will easily cause "heat". Therefore, people with yin deficiency and excessive fire are best to eat less. Those who are suffering from acne, sores, dry throat and sore throat, swollen and painful gums, People with constipation or acute inflammation are best not to eat it.
4. Mango
Known as the "King of Tropical Fruits", mango juice is delicious and beneficial to the stomach, relieves vomiting, quenches thirst and diuresis. Mangoes are rich in beta carotene, which is not only good for the skin and eyes, but also helps protect the liver.
Research shows that compounds such as astragalus, quercetin, and tannic acid in mango can help the body reduce the risk of breast cancer, colon cancer, and prostate cancer.
But the elderly, children with poor gastrointestinal function, and people with qi and spleen deficiency should eat less mangoes.
In addition, some people will develop erythema all over their body and develop allergies such as vomiting and diarrhea after eating mangoes. Such people should avoid mangoes as much as possible.