If you want to ask, where are all the foods you added stored? I'm sure most people would say refrigerator. Now the refrigerator can be said to be an essential appliance for every family, which can help extend the shelf life of food and bring great convenience to people's lives.
Everyone may think that food must be safe in the refrigerator, and often all fruits, vegetables, meat and leftovers in life are piled up in the refrigerator, which is correct.
But in fact, some foods in the refrigerator will accelerate the deterioration of food, affect the taste of food, and even breed all kinds of harmful bacteria.
Five "foods" that can't be put in the refrigerator
0 1
banana
Don't put immature bananas in the refrigerator.
Banana is very sensitive to low temperature. When the temperature is below 1 1- 13, chilling injury will occur, which will make the fruit unable to ripen normally, the peel will turn dark gray and the edible value will become worse.
Mature bananas can be stored in the refrigerator, but the "opinions" of banana peels are great.
Because banana peel contains a lot of phenols and polyphenol oxidase, it is inevitably affected by collision, friction and low temperature damage during transportation, which will lead to the damage of banana epidermal cells and make these substances run out of banana epidermis and polymerize into melanin, so banana peel will turn black.
But that doesn't mean the banana is broken. It's just black skin. The pulp can not be broken, just to overcome psychological and visual obstacles.
02
onion
It is suggested that fresh onions should not be refrigerated in the refrigerator, because its fragrance is very rich, which will make other ingredients in the refrigerator get a strong onion flavor!
Moreover, onions will become soft and even moldy if they are kept in the refrigerator for too long.
03
potato
The temperature of the refrigerator will turn the starch of potatoes into sugar, and it will also affect the texture of potatoes. No matter how much people like potatoes, they won't like their taste.
Store potatoes in a cool and dry environment. The dry environment can prevent the above transformation process from happening.
04
tropical fruit
The reason why tropical and subtropical fruits are afraid of low temperature is related to their growing areas and climate. Generally speaking, fruits cultivated in warm areas, especially in summer, are less tolerant to low temperature than fruits cultivated in cold areas and autumn.
Therefore, some temperate fruits, such as grapes, apples and pears, can be kept fresh in the refrigerator, while bananas and mangoes will turn black at a temperature of more than ten degrees Celsius. When pineapple is stored at 6- 10, not only the peel will change color, but also the pulp will be soaked in water. When litchi, longan and rambutan were stored in 1-2, the color of the exocarp would become darker, and some scald-like spots appeared on the endocarp. This kind of fruit is usually more perishable.
Tropical fruits will accelerate deterioration at room temperature after being taken out of the refrigerator, so they should be eaten as soon as possible.
05
Canned food and other sealed disinfection products.
Canned food, normal temperature milk, etc. All products are sterilized at high temperature. They have no bacteria themselves and can be stored at room temperature for a long time. As long as it's unopened, it doesn't need to be put in the refrigerator.
How to use the refrigerator is more reliable?
1, raw and cooked food should be separated, and food should be stored separately.
2. Different storage temperatures need layered storage.
Storage in every position of the refrigerator is also suitable, because usually the temperature at the bottom of the refrigerator is lower than that at the top, and the temperature inside will be lower than that outside.
3, regular cleaning, refrigerator safety is the basic condition of food safety.
It is recommended that you clean the refrigerator regularly. Only when the refrigerator is clean can food safety be guaranteed.