Can pineapples be put in the refrigerator? How should pineapples be preserved?

April is the season for pineapples, but sometimes we put them in the refrigerator? Will this produce bacteria? Will it destroy the nutritional value of pineapple? Can pineapples be put in the refrigerator? How should I store it?

Can pineapples be put in the refrigerator?

The answer is best not to.

The characteristic of tropical fruits is that they are afraid of cold, so pineapples are not suitable for refrigeration. It is best to store them in a dark and cool place. It is best not to keep it for more than two days. If it is a pineapple without peeling, it can last for several days. If you peel it, it will go bad as easily as an apple that has been knocked. It is recommended to cut as much as you eat, and it is best to eat it all at once. If you really can't finish it, you can cut it into small pieces, pickle it with sugar, drink it with water or eat it as dessert.

Because of the different types of tropical fruits, their optimal storage temperatures are also different. Some tropical fruits really don't fit in the refrigerator. For example, the optimum storage temperature of mango is about 10℃- 13℃, and the peel will turn black below 8℃. Pineapples without peeling can generally be stored for one month at the temperature of 1 1℃- 13℃, but they are easy to deteriorate in the refrigerator. Banana is most suitable for storage at 8℃-23℃, and it is easy to turn black at high temperature, and it is easy to turn black below 5℃. The optimum storage temperature of papaya is about 7℃; Guava can be stored at 5℃- 10℃ for 2-3 weeks. When the temperature is lower than 5℃, guava will be frozen and rotted. Passionflower is also sensitive to temperature. Freezing injury will occur at low temperature and mildew will occur at high temperature, and the best storage temperature is about 6℃.

Not all tropical fruits can't be put into the refrigerator, but some can keep fresh better: peeled jackfruit can be sealed with plastic wrap and put into the refrigerator to prevent water evaporation, but it is best not to exceed 3 days; Litchi can be stored at 7℃- 10℃ for a week, but it can be stored in the refrigerator for about a month. But if litchi is stored at 0℃ for one day, the peel will turn black and the pulp will turn sour. Fresh longan contains more sugar and water, and it can be stored at 4℃-6℃ for about 15 days. Rambutan changed color and appeared spots after 3 days at room temperature. In order to prolong the fresh-keeping time, it can be sealed and refrigerated in plastic bags for about 10 days. Low temperature can reduce the loss of water in mangosteen and delay aging, so mangosteen should be stored in the refrigerator; Durian with shell can be stored in refrigerator for 3-5 days, but it should not be stored for a long time, otherwise the fragrance will evaporate and soften; Lotus mist has high water content and thin skin, so it cannot be stored. Generally speaking, it can only be stored at room temperature for about 1 week, but it can be stored for 2-3 weeks if it is wrapped in newspaper and placed in the freezer.

The preservation of fruits should also be classified, and they should not be blindly stuffed into the refrigerator. Don't put the first one in the refrigerator, or you will get frostbite. Such as banana, carambola and loquat. The second kind can be put in the refrigerator, but it must be ripened first (that is, unripe fruits can't be put in the refrigerator). Such as durian, mango, Sakyamuni, passion fruit, persimmon, papaya and so on. The third category must be kept in the refrigerator for a long time. Such as: peach, mulberry, plum, litchi, longan, rambutan, cherry, chestnut, guava, grape, pear, strawberry, mangosteen, pitaya, melon, grapefruit and so on. The fourth category can be stored at room temperature or refrigerated in the refrigerator. Such as: lemon, pineapple, grape, orange, olive, jujube, apple, watermelon, orange, coconut, grapefruit, sugarcane and so on.

Fresh-keeping method of shredded pineapple

1. Wrap it in plastic wrap and put it in the refrigerator, but it is best not to exceed two days. Soak it in salt water when eating;

2. Put it in a container bigger than pineapple, add water, and add 2 teaspoons of salt to the water. Water should not flow through pineapples. It can be kept for 24 hours. China Food Network suggests that you try to finish eating within this time. Although it can be stored in the refrigerator for a longer time, cut food should not be stored like that.

skill

Don't throw away the freshly cut pineapple skins and leaves, they are still useful. Let's talk about leaves first. After washing, boil them in water. You can take it after cooling. They have a good therapeutic effect on mild diarrhea, and their taste is light, a bit like boiled pear water. Take it twice a day. Of course, if it is severe diarrhea, you still have to go to the hospital to see a doctor and prescribe the right medicine.

The remaining pineapple peel is a good material to remove odor, which can be placed in a newly renovated room to absorb various harmful substances. The odor in the refrigerator can also be removed in this way, leaving the aroma of pineapple, which is more natural than any industrial essence.

Pineapple is sweet, slightly sour and slightly cold. Has the effects of clearing away heat, relieving summer-heat, promoting salivation, quenching thirst and inducing diuresis. Can be used for treating summer heat injury, body heat, polydipsia, abdominal distension, dyspepsia, dysuria, dizziness, etc. And in fruit juice, there is an enzyme similar to gastric juice, which can decompose protein and help digestion.