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I sweat not in the dark sunflowers?
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Five common food freezing contraindications.
Bananas: If bananas are stored in a place below 12, they will turn black and rot.
Fresh lychee: If the fresh lychee is left in an environment of 0 for one day, the skin will turn black and the flesh will become flavorful.
Tomatoes: After tomatoes are frozen at low temperature, the flesh is blister-like, soft and rotten, or there are black spots on the surface, undercooked, no umami, and in severe cases, they are rancid and rotten.
Ham: If the ham is stored in the refrigerator at a low temperature, the moisture in it will freeze, the fat will precipitate, the leg meat will clump or loose, the meat will become tasteful, and it will be easy to spoil.
Chocolate: After chocolate is frozen in the refrigerator, once taken out, a layer of hoarfrost will form on its surface at room temperature, which is very easy to mold and deteriorate, and lose its original flavor.
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1) Bananas: Stored in an environment below 12 will make them black and rotten.
3) Cucumber: If you leave it in the refrigerator for three days, the skin will become water-soaked and lose the flavor it holds.
4) Tomatoes: After freezing, some or all of the fruits will be soaked in water and soft and rot, showing brown round spots.
Bread: During the baking process of bread, the starch linear parts in the flour have aged, which is why the bread develops an elastic and soft structure. As the bread is left for a longer period of time, the amylopectin in the bread slowly associates, and the soft bread gradually hardens, a phenomenon called "aging".
The rate at which "aging" is temperature dependent. It ages faster at low temperatures (above the freezing point), while bread hardens faster when it is stored in the refrigerator.
Cucumber and green peppers: Cucumbers and green peppers that have been stored in the refrigerator for a long time will cause frostbite "injury" - blackening, softness, and taste. Cucumbers also grow sticky hair.
Because the temperature stored in the refrigerator is generally about 4 to 6, while the suitable storage temperature for cucumbers is 10 to 12, and green peppers are 7 to 8. Therefore, it is not suitable to exist for a long time.
Ham: If stored in the refrigerator, the moisture in it is easy to freeze, which promotes the oxidation of the fat in the ham, and the quality of the ham will be significantly reduced, so that the shelf life is greatly shortened.
Chocolate: In summer, the indoor temperature is generally around 25, at this time, if the chocolate is taken out of the refrigerator, the surface of the chocolate will immediately frost, and after a long time, the chocolate will become mildew or insects due to moisture.
Leafy vegetables: It is best not to put them next to the refrigerator, otherwise they will rot.
Another place to be clear is that the principle of storing food in the refrigerator is to slow down the growth and reproduction of microorganisms, and cannot kill microorganisms. The most suitable reproduction temperature for most microorganisms is around 37 degrees Celsius, and some can multiply rapidly above 20 degrees Celsius, although the vast majority of microorganisms grow slowly below 10 degrees Celsius, but there are still some bacteria that can survive or even multiply at lower temperatures.
Therefore, inappropriate storage temperature, high food temperature, raw and cooked cross-storage, etc., all affect the refrigeration effect and reduce the "insurance coefficient" of the refrigerator.
Let me tell you some common sense, please be sure to prevent the occurrence of "refrigerator diarrhea", and be sure to store processed foods reasonably.
1.Keep a thermometer in the refrigerator room and keep it at 4-10.
2.When storing, raw and cooked should be separated, and packed separately in a plastic wrap box or plastic wrap to avoid cross-contamination.
3.Cooked food should be stored when it has been cooled to room temperature, as it is dangerous to store at room temperature for longer periods of time.
4.The food taken out of the refrigerator should be heated indoors after it has been warmed before heating, and the heating time should be more than 15 minutes.
5.The storage time should not be too long, and the food that needs to be stored for a longer time should be stored in the freezer.
6.Clean the refrigerator frequently and keep it clean.
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What are you all about? Basically, you can put it for a day or two, and it's not good if the food is left for a long time.
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Cooked foods, meats, soy products, beverages Some fruits such as bananas Bananas, soy products, yogurt, milk, soy products Uneaten vegetables.
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