Eight kinds of food should not be eaten overnight.
1, overnight tea can't be drunk.
Overnight tea has lost most of its vitamins for a long time, and protein and sugar in tea soup will become nutrients for bacteria and molds to breed. Therefore, people usually think that overnight tea can't be drunk.
2. Can tremella be eaten overnight?
Auricularia auricula soup is a kind of advanced nutritional supplement, but after overnight, the nutritional components will be reduced and harmful components will be produced. Because both the tremella cultivated indoors and the tremella cultivated in the wild of basswood contain more nitrates, if it is cooked for a long time, nitrate will be reduced to nitrite under the decomposition of bacteria.
When people drink this soup, nitrous acid naturally enters the blood circulation and is found in red blood cells in the blood, which can carry a lot of oxygen for the body to need.
However, nitrous acid has the opposite effect, which makes the human body normally oxidized into methemoglobin, losing the ability to carry oxygen, and causing the human body to lack normal hematopoietic function!
3. You can't drink boiled water overnight.
Boil tap water for 3 ~ 5 minutes, the content of harmful substances such as nitrite and chloride is the lowest, which is most suitable for people to drink.
Drink less boiled water overnight: Nitrite can form carcinogenic nitrosamines in human body. Some experts have found that the nitrite content in boiled water is higher than that in raw water.
Moreover, the content of nitrite increased obviously when boiling water for too long or more than 24 hours repeatedly. After standing in boiling water for 24 hours, the nitrite content is 1.3 times that of when it was just boiled.
Chinese residents have the habit of drinking boiled water, and it is best to burn it now or just drink the boiled water of the day. Don't drink boiled water for too long.
4. You can't eat eggs overnight
Can I eat eggs overnight?
Northerner: Yes, I can't see that tea eggs are sold on the street!
Southerners: No, especially men, because they will get intestinal gas and scrotum swelling!
Scientist: Not necessarily! Because if the eggs are not completely cooked, the immature yolk will be eaten overnight, and under the condition of improper preservation, nutritious things will easily breed bacteria, which will be harmful to health, such as causing and flatulence. However, if the food (egg) is well cooked and properly sealed at a low temperature (generally refrigerated temperature), it can generally be stored for 48 hours.
From the tips of scientists, we can know that whether eggs can be eaten overnight depends not only on whether they are heated, but also on whether the eggs are cooked at the first time. Only after the first boiled eggs are cooked, it is no problem to cook them overnight.
This is also the truth of tea eggs. Maybe you don't know that tea eggs are cooked twice. The first time they are cooked, the second time they are broken, and then they are cooked with tea and other auxiliary materials. So tea eggs must be cooked. Now some people like to eat half-cooked eggs. (The yolk is semi-liquid) That kind of eggs can't be eaten overnight. Even if they are cooked for the second time, don't eat them.
5. Don't eat leafy vegetables overnight.
Because some green leaves contain more nitrates, if they are left for too long after cooking, nitrates will be reduced to nitrite under the decomposition of bacteria, which is carcinogenic and cannot be removed by heating.
Usually, the nitrate content in stems and leaves is the highest, melons are slightly lower, and rhizomes and cauliflowers are in the middle. Therefore, if you buy different kinds of vegetables at the same time, you should eat stems and leaves first, such as Chinese cabbage and spinach.
If you are going to cook more vegetables and eat them hot the next day, you should try to make fewer stem and leaf vegetables and choose melon vegetables.
6. Don't eat bad food at home overnight.
Lu Wei and bad food are both seasonal dishes that Shanghai residents like to eat. Many citizens also like to put the leftover Lu Wei bad food in the refrigerator for the night, but there is a lot of food in this way.
To prevent food poisoning, don't eat braised bad goods overnight in spring and summer.
Bulk pot-stewed meat should be eaten on the same day, not overnight. From the point of view, this is unsanitary. If possible, it is best not to eat bad goods overnight.
Food experts remind that even food in the refrigerator is not absolutely "safe". The refrigerator is easy to breed mold, as well as psychrophilic bacteria.
7, seafood can not be overnight
Overnight foods that should not be eaten include fish, seafood, green leafy vegetables, cold salad and so on.
Fish and seafood are prone to produce protein degradation products overnight, which will damage the liver and kidney function.
Green leafy vegetables contain different amounts of nitrate. If they are overcooked or left for a long time, not only will the vegetables turn yellow and taste bad, but nitrate will also be reduced to toxic nitrite by bacteria, which will cause cancer.
Cold salad is polluted when it is processed, even if it is refrigerated, it is likely to have deteriorated after overnight, so it should be made and eaten now.
8. What about overnight soup?
Cantonese people like to make soup, put the soup in the refrigerator and boil it the next day before drinking it. Is this overnight soup good for your health?
Healthy eating:
The best way to preserve the soup is not to put seasonings such as salt at the bottom. When the soup is cooked, use a clean spoon to scoop out what you want to drink that day, and it is best to store it in the refrigerator with a earthen pot.
Because the leftover soup is stored in aluminum pot and stainless steel pot for a long time, it is prone to chemical reaction, so it should be kept in glass or ceramic utensils.
Eating overnight dishes
Some people say that leftovers can't be overnight and will be toxic; Others have heard that the nutrients in leftovers will be seriously lost, and it is useless to eat them. In fact, whether leftovers can be eaten depends on what is left, how long it has been left, under what conditions it is stored and what conditions it is reheated.
The dishes should be heated thoroughly.
Leftovers can be put in the second meal, but they must be heated thoroughly. The so-called thorough heating means that the whole dish is heated to 100 degrees and kept boiling for more than 3 minutes.
Meat heating: If the meat is large, it must be boiled and steamed for a long time, or cut up the meat and reheat it.
It is a good way to heat leftover food in microwave oven, which can fully heat the inside of food. However, in the family, it is often difficult to control the time of microwave heating, and it is also easy for food to splash into the microwave oven.
You can consider heating the food in a microwave oven for one or two minutes to raise the internal temperature of the food, then heating it in a pot, or steaming it in a steamer, which is easier to heat through. For leftovers that don't want too much soup, they can be heated by steaming or decocting in water.
Bean products heating: Compared with meat, bean products are more prone to corruption, so you should pay more attention when heating.
It is not a pity to cook for a few more minutes, because the vitamin content in tofu is very low, and the protein, calcium and magnesium it is rich in are not afraid of heat, so heating will not significantly reduce the nutritional value.
Vegetable heating: Vegetables are not suitable for long-term heating, so we can consider steaming with a steamer, which has better heat transfer effect than direct heating with a pot and less nutrient loss.
Special reminder: It is important that the dishes should not be heated repeatedly.
If you know that you can't finish the fish in the second meal, just heat half of it and put the rest back in the refrigerator. Even some cooked food and bean products can be directly frozen into the freezer in small boxes.
Leftovers transformation method
People are very enthusiastic when eating new dishes; But eating the same dish again and again is obviously unpleasant.
In many families, housewives gain weight and lose their slim figure because of eating leftovers, because husbands and children despise leftovers. In fact, apart from vegetables, it is not difficult to renovate fish and meat leftovers, which is nothing more than changing knives, adding ingredients and changing seasonings.
For example, there are some large pieces of meat left. If it is too few to cook a dish alone, you can cut it into small pieces and add some fragrant vegetables to make fried meat slices with vegetables.
For example, adding coriander, onion, celery and so on can make fried pork slices delicious and appetizing, and family members will certainly welcome them as new dishes.
For another example, the meat that used to be braised in brown sauce can now be transformed into curry flavor by adding curry powder and potatoes and carrots.
You can also transform leftovers into soup, such as leftover ribs with vegetables and dried noodles to make vegetable ribs soup noodles; Stir-fried eggs with tomatoes, fungus and pimples are left, and they are transformed into tomato-flavored soup and the like.
In this way, the leftovers will not be wasted, and when they are reheated, they will be cooked thoroughly enough, so that the safety will be guaranteed and the family will be happy to eat.
In short, although it is our ideal goal not to leave leftovers, it is common for animal foods, especially meat, to cook and eat two or three meals at a time. As long as it is packaged and stored immediately after cooking, and the second meal is heated and utilized reasonably, it can live in peace with leftovers safely.
How to be healthy in winter
In winter, the climate is cold, with yin flourishing and yang declining. Under the influence of cold temperature, the physiological function and appetite of the human body will change. Therefore, it is necessary to adjust the diet reasonably, ensure the sufficiency of essential nutrients, and improve people's cold tolerance and immune function. How can we eat healthily and safely? Life Home posted a series of articles on winter diet to customize a healthy winter diet for you.
The idiom "Hungry for food" means that people have a strong appetite when they are hungry. However, it is very harmful to health to eat whatever you catch. Some people get up in the morning to eat some fruit and drink some drinks for convenience in order to lose weight, which brings great disaster to their stomachs, because some foods can't be eaten in the morning. Here I would like to remind you that the following five foods should be paid special attention.
First, carbonated drinks:
These drinks can only make people feel more thirsty after drinking, rather than quenching thirst as most people think. All carbonated drinks contain a lot of sugar, and a cup of cola contains 5 tablespoons of sugar.
Second, French fries:
It is absolutely poisonous to the body, especially those French fries made of mashed potatoes. It is basically a mixture of carbohydrates, fats and artificial food additives. Usually, additives are added just to enhance the taste and make the French fries more delicious.
Third, lollipops:
Containing a variety of food additives makes this high-calorie food very addictive.
Fourth, sausages:
Made of lard, subcutaneous fat and 40% of the total meat skin, and various food additives help us deceive our eyes.
Five, high-fat meat:
Especially fried food.
Precautions:
According to the different nutrients contained in food, winter meals should have the following characteristics:
Eat more staple food, and eat some mutton, quail and sea cucumber properly. Protein, fat and carbohydrates are called thermogenic nutrients. Therefore, in winter, we should appropriately increase the intake of staple food and oil to ensure the supply of high-quality protein. Mutton, beef, chicken, venison, shrimp, pigeon, quail, sea cucumber and other foods are rich in protein and fat, which produce a lot of calories. Chinese medicine believes that it is beneficial to kidney and yang, warming the middle and warming the lower, invigorating qi and generating blood, and has the best effect of keeping out the cold.
Fear of cold is related to lack of calcium and iron. People's fear of cold is related to the fact that the body consumes less certain minerals. For example, the content of calcium in human body can affect the flexibility and excitability of myocardium, blood vessels and muscles; Iron deficiency in blood is an important cause of iron deficiency anemia, which is often characterized by low heat production and low body temperature. Therefore, supplementing foods rich in calcium and iron can improve the body's ability to keep out the cold. Calcium-containing foods mainly include milk, bean products, kelp, seaweed, shells, oysters, sardines, shrimps, etc. Iron-containing foods are mainly animal blood, egg yolk, pig liver, soybeans, sesame seeds, black fungus and red dates.
Kelp and laver can promote the secretion of thyroxine and generate heat. There is a kind of thyroid secretion called thyroxine, which can accelerate the oxidation of many tissues and cells in the body, increase the body's heat production capacity, enhance the basal metabolic rate, accelerate the blood circulation of the skin, and resist the cold and keep out the cold, while foods containing iodine can promote the secretion of thyroxine. Foods rich in iodine are: kelp, seaweed, Nostoc flagelliforme, jellyfish, spinach, Chinese cabbage, corn and so on.
Animal liver and carrot can increase cold resistance. The cold climate causes obvious changes in human vitamin metabolism. Increasing the intake of vitamin A and vitamin C can enhance the cold tolerance and adaptability to cold, and has a good protective effect on blood vessels. Vitamin A mainly comes from animal liver, carrots and dark green vegetables, while vitamin C mainly comes from fresh fruits and vegetables.
Sesame seeds and sunflower seeds can provide essential elements for cold resistance. Cold weather increases the demand for methionine in the body. Methionine transfer provides a series of methyl groups necessary to adapt to cold. Therefore, we should eat more food containing methionine in winter. Such as sesame seeds, sunflower seeds, dairy products, yeast, leafy vegetables and so on.
Eating spicy food can dispel the cold. Pepper contains capsaicin, ginger contains aromatic volatile oil, and pepper contains piperine. They are all spicy foods. Eating more in winter can not only increase appetite, but also improve the ability to keep out the cold.
In addition, avoid eating or eat less sticky and cold food in winter, because such food is yin, which is easy to damage the yang in the spleen and stomach.
Tips: Through the narration of the above article, everyone should remember that some of them are inedible, so everyone should eat scientifically and nutritionally, which will be of great help to everyone's health. I hope what I said above will help you.