A lot of people think that food will be "safe" when put into the refrigerator, and will not change the taste and quality. In fact, the refrigerator just cools down to inhibit the growth rate of bacteria, but the food will also deteriorate if it is stored for too long. Eating it may cause nausea, vomiting, diarrhea and other "refrigerator food poisoning" symptoms. Let's have a look with 360 common sense.
Store overnight vegetables, increase nitrite
There has always been a saying in the field of nutrition that overnight vegetables, especially overnight vegetables, can not be eaten, because overnight vegetables have a high content of nitrite, and heating can only kill microorganisms and bacteria, but nitrite can not be heated away.
One experiment once found that the content of nitrite in four dishes increased significantly 24 hours after cooking, and all of them exceeded the limit standard of the limit standard of pollutants in food, including 34% of fried vegetables, 41% of fried eggs with leeks, 84% of braised meat and 141% of braised crucian carp. The content of nitrite in meat dishes exceeds the standard seriously. It is because the seasoning used in braised dishes contains nitrates. Moreover, the protein content of meat dishes is high. 24 hours later, the microorganisms decompose a large number of protein compounds to promote the transformation of nitrates into nitrite. The reason why vegetables contain nitrite is that nitrogen fertilizer is applied in the growth process of vegetables. Nitrate comes from nitrogen fertilizer.
In a word, no matter leftovers or leftover meat, they should not be stored in the refrigerator for a long time, because the adults taking 0.2-0.5g of nitrite can cause poisoning, and if they take it for a long time, they can also cause diseases such as esophageal cancer, gastric cancer, liver cancer and colorectal cancer.
Four kinds of food should not be put in the refrigerator
(1) Rhizomatous vegetables
The potatoes, carrots, pumpkins, winter melons and onions with thick leather can be stored at room temperature. In addition, cucumbers and green peppers are easy to turn black and soft when they are put in the refrigerator for a long time.
(2) Tropical fruit
Banana, mango and other tropical and subtropical fruits have poor adaptability to low temperature. If they are refrigerated in the refrigerator, they will freeze the fruit and affect the taste.
Bread, rolls, bread and other starchy foods are put in the refrigerator, which will quickly dry and harden. If they have to be stored, they should be packed with fresh-keeping film or bags before being put into the freezer.
(4) cured meat
Bacon, ham and other meat marinated products are suitable to be placed in a cool and ventilated place, which is conducive to ensuring the flavor of the food. If they are put into the refrigerator, because the humidity is too high, it is easy to have a taste of caramel, but it shortens the storage time.
It is worth mentioning that after thawing the frozen food (such as meat, fish, etc.), the bacteria will rapidly multiply in large quantities, and this thawed food is not suitable for re putting in the refrigerator. Therefore, before putting meat into the freezer, it's best to divide it into a proper amount of packaging, and thaw one package at a time.
Most people buy refrigerators home, and generally only use them to refrigerate and keep fresh food. However, there are many wonderful uses in refrigerators. These new uses can bring more convenience.
1. Life extension of stockings
Many girls often break their heads for stockings. The newly bought stockings should not be unpacked and put in the refrigerator freezer for 1-2 days. Then take it out for half a day or so and put it on again. The change of temperature can increase the toughness of the stockings. The frozen stockings are not easy to be damaged.
2. Moisture can be recovered
If some biscuits are damp, they are not crispy, but they have not exceeded the shelf life. Unfortunately, they can be frozen in the refrigerator for about 24 hours. Take out the biscuits, and the taste will be crisp again.
3. Flat silk dress
Silk clothes are wrinkled and wrinkled after washing. It's very troublesome to iron the clothes that are too soft. You can put them in a plastic bag and put them in the refrigerator for a few minutes. It's much easier to iron them after you take them out.
4. Cut the yolk without breaking
Just boiled white boiled eggs or tea eggs with a knife all the yolks will be broken, you can first put in the refrigerator cold storage for 1 hour. When the yolk is a little cold and solid, cut it again. The cut of the egg is smooth, and the yolk will not be broken.
5. Beans quickly boiled
If the red beans are difficult to boil thoroughly without soaking, they can be boiled together with water first, and then put into the refrigerator freezer for about 2 hours after cooling. After taking out, the water surface layer will appear some freezing phenomenon. At this time, heat the pot again. The water and the red bean are heated differently. The temperature changes so that the red bean boils about 20 minutes later.