Hello, I'm glad to answer your question! ! The following is my answer, I hope you like it! ! ! How about heating milk in the microwave oven? Source [Health Times] As a new generation of efficient, energy-saving, fast, simple and oil-free modern cooking tools, microwave ovens have gradually spread to people's families.

Microwave ovens are more popular because they have high efficiency in killing pathogenic bacteria on food and tableware. Since the microwave oven has a strong sterilization ability, will heating milk in the microwave oven destroy its essential nutrients? According to relevant data, the sterilization ability of microwave oven mainly comes from thermal effect and biological effect.

Thermal effect refers to the variation and solidification of bacterial cell protein when it is heated, resulting in bacterial death. If the milk is heated in the microwave oven for too long, the protein in the milk will be affected by high temperature, changing from the sol state to the gel state, leading to the appearance of precipitates and affecting the quality of dairy products.

In this way, the nutrients in milk will be greatly lost. Professor Song Guanglin from China Children's Development Center said that the longer the milk is heated, the higher the temperature, and the more serious the loss of nutrients.

However, after boiling, calcium in milk will precipitate with phosphoric acid, which reduces the nutritional value of milk. These lost nutrients are mainly vitamins, followed by lactose, of which vitamin C is the most lost.

Moreover, when milk is cooked to 100℃, the lactose in it will coke, while caramel will induce cancer. However, it doesn't mean that milk can't be heated for drinking.

Professor Song said that it is best to sterilize milk in bags for 8 times before heating, especially in summer. According to the regulations, they should be stored at 0~4℃, but these milk are usually placed at room temperature or even exposed to the sun, so it is impossible to guarantee the safety and hygiene of drinking.

Regarding whether heating milk in microwave oven will destroy the nutrition of milk, Professor Song pointed out that the key problem lies in the length of heating time. Because the heating speed of the microwave oven is extremely fast, and the temperature required for milk cannot be too high.

If you use a stove, it is usually 70 degrees for 3 minutes and 60 degrees for 6 minutes. Then use the microwave oven 1 minute or so.

However, experts suggest that if heating can be avoided, try not to heat it, so as to preserve the complete nutritional value of milk. Especially for children, complete milk nutrition will be more conducive to their growth.

Like pure milk sold in shopping malls or supermarkets, the general health protection is relatively reliable, and there is no need to heat it when drinking. .

2. Life tips

1. When lime flies into your eyes and is unbearable, just drop a little sugar water.

It can relieve the pain. The water mist on the bathroom mirror is difficult to clean.

You can apply a layer of soap to the mirror first, and then dry it with a dry rag, so that the mirror can be easily restored to clarity. 3. If you feel itchy all over because of dryness in winter, don't scratch it with your hands, otherwise it will easily scratch your skin and cause secondary infection. You can drink more water and eat more fruits to prevent it.

4. Drinking coffee can relieve stress and relax, and at the same time, it can * * * wriggle. It has a laxative effect, and people with constipation can drink coffee at breakfast.

When drawers and closets smell musty, put a bar of soap in them to remove them. 6. When buying a gift box as a gift, the price tag is hard to tear off. You can use a hair dryer to blow it off, so it will be easy to tear it off without leaving a trace.

7. Boiling water with grapefruit peel can cure frostbite. Scrub the affected area with boiled water from grapefruit peel 1-2 times a day, and it will be effective after several times.

8. Milk can strengthen the body, and drinking 250 ml of milk every day can reduce the risk of colon cancer. But drinking too much may lead to prostate disease.

9. Ginger can refresh you, and you can eat more ginger in winter. Experts believe that eating ginger can relieve the pain caused by rheumatoid arthritis and improve the mobility of joints. 10. Avoid covering your head with a quilt in winter, because the accumulation of carbon dioxide and unclean gases will make people feel groggy and exhausted after waking up.

1 1. Mung beans can reduce fever and cure colds. You can boil mung beans first, add ginger and cola after boiling, and drink them while they are hot, which can reduce fever and cure flu. 12. Don't eat oranges one hour before drinking milk, because the protein of milk will solidify when it meets the fruit acid in oranges, which is not conducive to the absorption of milk.

13. Banana peel can effectively treat frostbite. Gently rub the frostbite with the inside of banana peel until it gets hot, and it will take effect several times. Eating raw peanuts can cure presbyopia. Eating about 25 grams of peanuts once a day and persisting for a long time will help the recovery of presbyopia. Washing your face with orange peel water can moisturize your skin. Use. 00000000006 Moisturizes the skin. 16. When the clothes are stained with egg white, you can soak them in cold water first, then in tea, and finally rinse them with clear water to remove the egg white stains. 17. Holding your breath in swimming can exercise and help treat tinnitus, so you need to persist for a long time. 18. Catechin in tea can inhibit the activity of influenza virus, so rinse your mouth with tea. Can effectively prevent influenza. 19. Steamed banana rock sugar to relieve cough. 3 bananas and 5 grams of rock sugar, put them in a bowl and put them in a pot, and steam them with slow fire for 15 minutes, which has a good cough relieving effect. 20. Treat heel pain by soaking feet with water from Zanthoxylum bungeanum leaves. Boil fresh Zanthoxylum bungeanum leaves and soak your feet for several days while it is hot, each time for half an hour, and you will soon get well. Mix them together, make them into a paste, and apply them to the affected area three times a day, and you will get well in a few days.50000.00000000105 22. Ginger juice drinks can treat dizziness and nausea. Drink ginger powder after seasoning, and drink it half an hour before driving, which can prevent dizziness and nausea. 23. Jujube can cure hand and foot cracks. Remove the skin and core of several jujubes, add water to make a paste, apply it to the crack twice a day, and it will heal in a few days. 24. Sweating with soy sauce can be cured. At 1 minute or so, it vomits 3 to 4 times continuously, and the effect is very good. 25. If the wooden furniture cracks, you can cut off the old newspaper and add alum to make the rice soup paste. Stick it in the gap and it will be strong after drying. 26. Mash pears and add rock sugar to adjust clothes, which can cure hoarseness. Add ephedra 1 g to Sydney and cook it twice a day. You can apply oily substances, such as cream, to the wound and isolate it from water, so that it will not be inflamed and painful. 28. Newspaper ink can repel insects. Put a layer of newspaper under the box where the clothes are placed, and then put the clothes in, so as to protect two clothes from insects. 29. Wash a proper amount of fresh lotus root, mash 250g of juice, add 52g of honey, mix well, and take it five times in a row to cure a cold and cough. It is easy to go moldy and deteriorate, losing its original flavor. 3 1. When steaming things, it is not advisable to put too much water in the steamer. Generally, it is advisable to leave half a bowl of water in the steamer after steaming. Doing so can save gasoline to the greatest extent. 32. Eat 6-9g fresh aloe leaves raw in the morning and evening, and drip aloe juice into the nose, which can cure flu symptoms for 4-5 days. 33. Put the peppers in a steamer and fry them and grind them. Often used to lose weight. 34. Patients with chronic pharyngitis should eat more Chinese cabbage instead of spicy food. This disease can be relieved slowly. 35. After the clothes are stained with grease, squeeze toothpaste and apply it to the polluted place, gently rub it, and then rinse it with water to remove the grease. 36. After the body bumps, you can apply a small sesame oil to the affected area and gently rub it. There will be no lumps and bruises on the affected area. 37. Steamed white sugar tofu can cure colds. Sprinkle some sugar on tofu and eat it in a steamer, three times a day, and you will get over a cold for several days. 38. Fried, sometimes the oil will overflow from the pot after boiling. You can immediately add a few peppers and the boiling oil will disappear. 39. If the rattan is dirty, you can soak it in water and then use it to get sulfur. Soaking in 4% vinegar water and boiling can remove most toxic substances. 4 1. Silk clothes can be ironed in Huang's, mixed with a little baking soda powder and water to make a paste, and applied to the ironed place. After the water evaporates, you can iron it on a wet cloth to remove the brown color. 42. Draw a small cross on the bottom of the tomato, put it in boiling water for 5 seconds, and immediately take it out and immerse it in cold water. You can peel off the skin easily. 43. Soak 150g Lycium barbarum in a proper amount of Chinese liquor and drink it once a day after ten days. Long-term drinking can effectively treat low back pain. 44. Eat two cloves of garlic after dinner or before going to bed every day. After a period of time, you can cure insomnia and return to normal sleep. 45. Blocking wormwood can cure nasal congestion, and it will feel better if you put it in your nose. The energy is greatly increased. 47. Cover the surface of the stain with a cloth stained with glycerin and egg yolk for a while, and then rinse with clear water to remove the stain. 48. Washing vinegar with boiling water can prevent carsickness. Take a little vinegar, drink boiled water before taking the bus to prevent carsickness. Experts suggest that eating more red peppers, carrots, hawthorn and other foods in winter, or drinking yogurt three times a day and a bowl of chicken soup can effectively prevent colds.

Can I heat the milk in the microwave oven?

Whether heating milk in microwave oven will destroy the nutrients of milk depends on the length of heating time. Because the heating speed of microwave oven is extremely fast, and the temperature of preserving milk nutrients should not be too high.

According to relevant data, the sterilization ability of microwave oven mainly comes from thermal effect and biological effect. Thermal effect can denature and solidify the cell protein of bacteria, leading to the death of bacteria. If milk is heated by microwave oven for a long time, protein in milk will change from sol state to gel state under the action of high temperature, which will lead to the appearance of sediment and affect the quality of dairy products. The longer the milk is heated and the higher the temperature, the more serious the loss of nutrients, mainly vitamins, of which vitamin C is the most serious loss, followed by lactose.

Drink a glass of milk about 250 ml. If you use a gas stove to heat it, you usually cook it at 70℃ for 3 minutes and at 60℃ for 6 minutes. Then use the microwave oven 1 minute or so. However, it should be noted that there will be uneven temperature when heated in a microwave oven, so stir it before drinking to avoid burns.

Professionals also made it clear that putting bagged milk directly into the microwave oven will have a negative impact on human health. If the packaging material is not marked with the words "can be heated by microwave oven", it is not suitable for direct heating by microwave oven. Milk must be poured into a special container for microwave oven before it is heated in microwave oven. At the temperature below 100℃, ordinary plastics will not have problems. It is suggested to scald the milk bag with boiling water below 100℃ to keep the milk warm.

But experts point out that if you can avoid heating and drinking, try not to heat it, so as to preserve the complete nutritional value of milk. Especially for children, complete milk nutrition is more conducive to growth and development. Like pure milk sold in shopping malls or supermarkets, general health protection is more reliable, and there is no need to heat it when drinking.

4. Urgent for 10 life tips, practical.

1. Use toothpaste skillfully: If there is a small area of skin injury or burns, applying a little toothpaste can stop bleeding and relieve pain immediately and prevent infection, and the curative effect is quite good.

2. Skillfully remove the greasy screen window: You can put the washing powder and cigarette butts left over from smoking together in the water, and use them to clean the glass window and screen window after dissolution, which has a good effect. 3. Put the shrimps in a bowl, add a little salt and edible alkali powder, rub them with your hands for a while, then soak them in clear water, and then wash them with clear water, so that the fried shrimps are as transparent, refreshing, fresh and delicious as crystal. 4. The trick of jiaozi noodle: add 6 egg whites to 1 kg flour to increase the protein in the noodle. After jiaozi enters the pot, protein will quickly solidify and shrink, and jiaozi will begin. Residual tea leaves can be dried in the sun and smoked in toilets or ditches, which can eliminate the stench and drive away mosquitoes and flies.

6, uncooked rice re-cooking method: If the rice is raw, you can use chopsticks to tie some holes in the rice that go straight to the bottom of the pot, sprinkle a little yellow wine and simmer again. If it's just unfamiliar, turn the noodles to the middle and simmer. If you have to cook vegetables, you'd better make full use of boiled water.

For example, when cooking jiaozi, you can put a proper amount of boiling water in the meat stuffing, which not only retains the nutrition, but also makes the dumpling stuffing delicious. 8. Tips for scrambled eggs: Beat the eggs in a bowl, add a little warm water, stir them evenly, pour them into the oil pan, and drop a little wine into the pan when frying, so that the scrambled eggs will be fluffy, tender and delicious. 9. How to use the casserole 1: When the newly bought casserole is used for the first time, it is best to cook porridge or use it to cook thick rice washing water, which can block the tiny pores of the casserole and prevent water seepage _ 10. Clever use of "thirteen incense": use dried tangerine peel when stewing meat, which is rich in flavor; Eating beef and mutton with angelica dahurica can remove fishy smell and increase freshness; Cinnamon for homemade sausage is delicious; Bacon smoked chicken with cloves has an endless aftertaste.

1 1 Tip 2, and jiaozi noodles: the noodles should be a little hard, put them into the pot after mixing and seal them tightly. 10- 15 minutes later, the gluten in the noodles will absorb water and swell, and the gluten will be fully formed and then wrapped with jiaozi 12. Coriander is an Umbelliferae plant. 13. Do not touch the door glass when performing high-temperature washing or clothes drying procedures to avoid burns.

When taking out the dried clothes, be careful of the metal parts on the clothes, such as zippers and buttons, to avoid burns. 14. If the collar and cuffs are dirty, you can soak the clothes in warm water with washing powder 15-20 minutes, and then wash them normally, so that they can be washed clean.

15, the use of casserole method 2: When using casserole to make soup and stew meat, you should first add water to the casserole, and then put the casserole on the fire, first with slow fire, then with strong fire. 16, when cooking, add some starchy starch to make the soup thick, which not only makes the cooked food delicious, but also protects the vitamins because the starch contains glutathione.

17. If the rice is burnt, turn off the fire quickly, put a skin on the rice and cover the pot. After 5 minutes, the skin can absorb the burnt smell. 18, the amount of washing powder: If the clothes are not too dirty or there is too much foam when washing, the amount of washing powder should be reduced.

Avoid excessive use of washing powder, which not only saves money and is environmentally friendly, but also makes the washing machine more durable. 19, when cooking jiaozi, add enough water, add 2% salt after boiling, and then add it to jiaozi after dissolving, which can increase the toughness of gluten. Jiaozi won't stick to the skin and the bottom, and jiaozi will turn white and smell delicious.

20. Many people like vegetables but don't like vegetable soup. In fact, when cooking, most vitamins have been dissolved in vegetable soup. For example, after Chinese cabbage is fried, 70% of vitamin C will be dissolved in vegetable soup.

2 1. If the white socks turn yellow, you can soak them in washing powder solution for 30 minutes before washing them. 22. How to use the casserole 3: When the casserole is placed from the top of the fire, it must be placed on a dry wooden board or straw mat, and it must not be placed on a ceramic tile or concrete floor.

23. When cooking leeks, add some vinegar after drinking, and the food will become delicious. When cooking vegetarian dishes such as bean sprouts, add some vinegar appropriately, which is delicious and nutritious, because vinegar has a protective effect on vitamins. 24. Bread can remove oil stains from clothes: when eating, if clothes are stained with oil stains, you can gently rub them with fresh white bread and the oil stains can be eliminated.

25. Scrubbing wooden and bamboo tables and chairs with residual tea leaves can make them more bright and clean. Dry the remaining tea leaves and spread them in a damp place to remove water; After the tea leaves are dried, they can also be put into pillowcases as pillow cores, which are very soft.

26. After jiaozi is cooked, fish out jiaozi with a strainer, then rinse it with warm water and put it on a plate, so that jiaozi won't stick to each other. 27. Tips for frying fresh shrimp: Before frying fresh shrimp, you can first blanch the shrimp with boiled water soaked in cinnamon, and then fry it, so that the fried shrimp tastes more delicious.

28. Try to stir-fry vegetables to avoid long-term heat preservation and repeated heating. In addition, in order to make the stalks easy to cook, you can add a little water to stew after quick frying.

29. When cooking eggs, you can soak the eggs in cold water for a while, and then put them in hot water to cook, so that the boiled eggshells are not broken and easy to peel off. 30. When a man shaves, he can use toothpaste instead of soap. Because toothpaste does not contain free alkali, it not only has no sensation to the skin, but also has rich foam and fragrant smell, which makes people feel cool.

3 1, the wonderful use of wind oil essence (1): Sprinkle a few drops of wind oil essence on the leaves of the electric fan, and with the continuous rotation of the leaves, the room will become fragrant and have the effect of driving away mosquitoes. 32. Before painting, put a layer of cream on your hands. After painting, apply cream to the painted skin, wipe it with a dry cloth, and then wash it with soap to remove the pigment attached to the skin.

33. Tofu generally smells of brine. Before tofu is put into the pot, if it is soaked in boiling water for more than 10 minutes, the pot smell can be removed. The tofu made in this way is not only delicious, but also delicious and sweet.

34, bread can eliminate carpet stains: if a small piece of carpet at home is dirty, you can wipe it with hot bread crumbs and then hang it in the shade. After 24 hours, the stain can be removed. 35. The watch is magnetized, which will affect the accuracy of time.

The elimination method is simple. Just find an unmagnetized iron ring, put the watch in the ring and wear it slowly. After a few minutes, the watch will degauss and recover.

5. There is an urgent need for a little trick to simulate life, which can be hosted for about 3 to 5 minutes, with no less than a little trick.

1, screen window cleaning

The screen window is covered with dust. Most of the time, we remove the screen window and wash it with water. Tell you a good way to clean the screen window without dismantling it: wet the waste newspaper with a rag, and then stick the wet newspaper on the back of the screen window. After five minutes, take down the newspaper on the screen window, and you will find that the wet newspaper is covered with dust stains on the screen window. This method saves time and effort in cleaning the screen window. Give it a try!

2. The corner around the room or the joint between the carpet and the wall is the most difficult corner to clean, and it is very easy to get moldy. Try cleaning with an old toothbrush. If you encounter stubborn dirt, you can brush it off with a toothbrush dipped in detergent, then clean it with water and keep it dry.

When sweeping the floor with a broom, if you are worried about flying dust, you might as well wet the newspaper, tear it into pieces and scatter it underground. Because wet newspapers get dusty, you can easily sweep the floor. If the floor is quite dirty, you can wipe the whole floor with a wet rag first, and then clean it with a dry rag.

6. Little common sense about life

Don't use aluminum pot to cook soup (because aluminum will enter the soup in ionic state when cooking soup, and people will get Alzheimer's disease if they absorb aluminum ions for a long time);

Tea stains in thermos flask or kettle can be soaked in vinegar for a period of time and then washed with clear water;

Don't use foam extinguisher when the wire is on fire (water can make people get an electric shock);

When oil is on fire, don't use water to put out the fire (oil floats on the water and can't put out the fire), use sand instead;

Don't put iron with fertilizer and salt, which will accelerate its rust (electrochemical reaction);

The fluorescent tube should be abandoned after it is broken, because there is mercury vapor in the tube, which is harmful to human body;

Metal that exists in liquid state at room temperature: mercury (mercury)

Do not wipe the LCD screen with alcohol, because alcohol will destroy the protective layer of the screen;

Seafood such as shrimp or crab should not be eaten with drinks rich in vitamin C, because VC will reduce pentavalent arsenic in shrimp and crab to highly toxic trivalent arsenic;

Industrial alcohol can't be drunk as wine (containing methanol, which is toxic and damages people's central nervous system and optic nerve, etc. );

The "ghost fire" seen in the cemetery at night is the spontaneous combustion flame of phosphine (PH3) produced by the decomposition of the corpse;

The density of ice is less than that of water, so ice floats on the water.

Do not pour water into concentrated sulfuric acid, because it will generate a lot of heat and boil, and sulfuric acid will splash on people and burn them;

The blackening of silver ornaments is due to the reaction between silver and hydrogen sulfide H2S in the air to produce black Ag2S (silver sulfide). The treatment method is as follows: put the jewelry with aluminum sheet in sodium carbonate solution for a few minutes, then take it out and wash it with clear water;

The reason why quicklime CaO heats up when it meets water is that the combination of quicklime and water to produce hydrated lime Ca(OH)2 is an exothermic reaction.

Don't mix different inks for the same pen, because ink is colloid. Mixing different inks will cause colloid to condense into large particles, thus blocking the pen tip. If you want to transfer ink, wash the pen first.

Pure glycerin can't be used to moisturize the skin, because it will absorb the moisture in the skin, but it will make the skin drier. Pure glycerin should be mixed with 20% water to moisturize the skin.

Apple turns yellow after peeling because VC is oxidized by oxygen in the air;

The scientific name of white plastic water pipes and electrical threading pipes used at home is PVC, and the English abbreviation is PVC;

A chemical that needs to be added to make steamed buns is baking soda, the scientific name is sodium bicarbonate, and the chemical formula is NaHCO3. The reason why steamed bread is porous is that when steamed bread, the NaHCO3 inside is decomposed by heat to produce CO2 gas, but there is nowhere to escape, so pores are formed in steamed bread.