Refrigerator is the daily life of food preservation tool, the refrigerator to store food is common, but recently there are foreign media reports, there are many common foods are not suitable for the refrigerator.
cucumber
Cucumbers long hair in the refrigerator, there will be frozen 'injury' - black, soft, bad taste. Cucumber long hair sticky because the temperature stored in the refrigerator is generally about 4-6 ℃, and cucumber storage suitable temperature 10-12 ℃, green pepper is 7-8 ℃, so should not be long-lived.
eggplant
Eggplant preservation do not put in the refrigerator, as long as the storage bag placed in a cool and ventilated place can, but must not wash the surface of eggplant water before preservation, to prevent the surface of eggplant covered with protective wax layer is washed, resulting in microbial invasion Premature decay.
tomato
Frozen refrigerator will make the tomato into a blister-shaped succulent, become rotten, spallation phenomenon. The surface will have dark spots, cook all cooked, severe will rot. Not only that, but also will delay the cold tomatoes The maturity of speed, destruction of tomato skin film, affecting its meat quality and food taste.
Therefore, we'd better place the tomatoes in a vegetable basket or a bowl, and then buy the best pedicle (that is, the tomato and the branches or rhizomes with green leaf-like parts) downwards to ensure that they are fresh and delicious to eat.
Unripe banana
Bananas grow in the tropical and subtropical regions, and do not have the ability to cope with the cold environment, suitable for preservation at about 12 ℃, if the green banana into the refrigerator, its 'maturation mechanism' will be harmed. Cooked, it is difficult to mature again.
According to the Canadian Association of Agricultural Products Marketing (CPMA), bananas are best kept at ambient temperatures before maturation, which in fact causes bananas to mature more slowly and humid and dark environments in refrigerators to only accelerate the decay of bananas, No mature bananas, do not put in the refrigerator to save.
Already mature bananas are different.The low temperature in the refrigerator can make the activity of amylase, pectinase, etc., so that the bananas to slow down the rate of further maturation.In other words, the flavor of the ripe banana can be preserved longer refrigeration .
Immature avocado
Immature avocado should not be placed in the refrigerator because cold storage delays the rate of ripening of the avocado.
If you do not want to make it cooked too fast, to save longer, it is best to put the avocado in a brown paper bag.If you want it to mature earlier, you can put it in the fruit plate and bananas.
onion
The bought onions should be kept in a cool, dry, dark, well-ventilated place. Never leave the onions in plastic bags and in the freezer so that the onions that would have been tolerated will soon decay.
When buying onions, buy the kind of sneezing, dry, firm, scratch-free, and unpleasant to the touch (because the onions smell when scratched or scratched). Keep fresh and dry environment, avoid with potatoes.
Onion and then cut not choking people.Open all the inside, the sulfide will react, choke people DC tears.Open the onion in the refrigerator for 10-15 minutes and then cut.In addition, the more sharp Knife cut, onion choking less opportunity.In addition, but also the last cut root, because the root of the highest sulfide content.
potato
Fan Zhihong, associate professor of nutrition and food safety at China Agricultural University, pointed out that the study of storage found that potatoes like cold environment, Toxins will double at 24 hours at 7 ° C, 4 times at 16 ° C and up to 9 times at 24 ° C, so if you do not have a vegetable cellar, it is best not to buy more potatoes and to eat the best in time.
In the hot summer season, the potatoes bought must be promptly placed in the refrigerator.When the winter and spring days when the cooler, do not place on a heated indoor, preferably on a cool balcony.At the same time, it is best to use black Or opaque bags wrapped up, do not let it see the light, so potatoes are ready to germinate, to increase the content of toxins.
garlic
Garlic in the refrigerator to save, easy to germinate, easy to soften, affecting the taste, and speed up the decay rate.The correct method is to save the garlic in plastic bags, then the bag sealed.
chocolate
Into the refrigerator after the chocolate out, the surface prone to hoarfrost, not only lost the original mellow taste, but also conducive to the breeding of bacteria.
The best temperature for storing chocolate is 5 ℃ -18 ℃ .If the room temperature is too high in summer, it can be sealed with plastic bag and then stored in refrigerator freezer. When it is taken out, do not immediately open it and allow it to warm slowly to room temperature edible.
bread
Bread During the baking process, the straight-chain portion of the starch in the flour has aged, which is why the bread has a resilient and soft texture.
As time went by, the straight chain of amylopectin in bread slowly joined and the softer bread gradually hardened, a phenomenon known as 'chang'.'The rate of' chang'was related to temperature. At low temperatures (above the freezing point) aging is faster, and the bread in the fridge hardens to a much faster rate.
coffee
Coffee is absorbent and easily absorbs the taste of other foods in the refrigerator.Low temperature can also cause the coffee to dehydrate, impair its aroma, taste.It is recommended to store in a cool, dark place indoors.
honey
Honey has a natural ability to keep fresh in the sealed state for a long time, we do not need to be specially placed in the refrigerator for preservation.
Conversely, if the honey into the refrigerator, but it will prompt crystallization of glucose precipitation.This change does not affect the safety of honey, does not affect its nutritional value, but will be more difficult to scoop, but also affect the taste evenness So honey can be stored at room temperature.
Tea, milk powder
These foods can be stored at room temperature, do not need low-temperature preservation, into the refrigerator if the lax seal, but will absorb the taste and moisture in the refrigerator, both affect the flavor, and moldy metamorphism.
If you need to save tea and milk powder for a long time, it must be sealed and then placed in the refrigerator cryogenic preservation (you can cryopreservation).
traditional Chinese medicine
Should not be placed in the refrigerator, herbs into the refrigerator, and mixed with other food for a long time, not only a variety of bacteria easily invaded herbs, but also easily damp, destroyed the medicinal properties.
For some precious herbs, such as ginseng, velvet, Tianma, Codonopsis, etc., for long-term preservation, can be placed in a clean glass bottle, and then put the amount of slow fire simmered to dark yellow glutinous rice, Seal the bottle cap and leave it in a cool, well-ventilated place.