Many people are accustomed to soaking fruits and vegetables in salt water before washing them, can s

In life, many people are accustomed to soaking in salt water when cleaning vegetables and fruits, thinking that salt water can sterilize and sterilize to a certain extent, but when washing vegetables and fruits, the concentration of salt water must be controlled.

Many people like to learn the teaching of food online, and will also teach you some small methods of disinfection, among which we prefer to clean fruits and vegetables with salt water agent, because soaking vegetables and fruits in salt water can have the effect of disinfection and remove pesticides on them. Many people want to ask if there is a scientific basis for this method, in fact, there is no harm to people's health with regular salt water blisters, but the concentration of salt water must be controlled. If you often soak vegetables and fruits in salt water when washing them, it may be unfavorable to people's bodies, not only will it not have the effect of disinfection and sterilization, but it may also change the concentration of salt in people's bodies.

It can be understood that salt is the king of all flavors, and it is inseparable when stir-frying, and when people consume too much salt, they are prone to high blood pressure.

It can also induce some cardiovascular and cerebrovascular diseases.

For normal people, the amount of salt consumed per day cannot exceed 6 grams, and the number of grams of salt that people may ingest when eating is exactly 6 grams. If you consume too much salt in vegetables and fruits that happen to be soaked in salt water, the amount of salt in your body will also be too high, which can be harmful to people's health.

Soaking fruits or vegetables in salt water for a long time can directly enter the inside of fruits and vegetables, at this time, the nutrients and some vitamins in vegetables and fruits may be lost, and people can not fully absorb the nutrients when they eat such fruits. It is okay to soak fruits and vegetables in salt water once in a while, but it is not recommended to wash fruits and vegetables in salt water frequently, it is not correct and has no scientific basis.

Of course, it can be said that salt water can indeed play a role in sterilization, but if there are more pesticides, then we should still use professional cleaning of vegetables and fruits.

Salt water can really kill bacteria, because salt water can destroy the living environment of bacteria, which can kill some bacteria.

Saline has a certain disinfection and sterilization effect, but the ability to disinfect and sterilize is limited.

1. Tap water: You don't have to soak it for a long time, 10 minutes is appropriate.

Zhu Yi, an associate professor at the College of Food Science and Nutritional Engineering of China Agricultural University, said that soaking or washing with tap water can remove some pesticide residues, but it does not have to be soaked for a long time, and 10 minutes is appropriate.

If you soak for too long, you may cause nitrate.

There are also physical and mental health hazards. Food poisoning in vegetables and fruits caused by pesticide residues of methyl parathion.

The proportion of incidents is very high, including the commonly used insecticidal doubles, and when cleaning up such pesticide residues, the actual cleaning effect of warm boiled water is stronger than that of cold water.

2. Salt water: It is easy to let nutrients flow out, which is beneficial to remove small insects.

He Jiguo, an associate professor at the College of Food Science and Nutritional Engineering at China Agricultural University, said that soaking fruits and vegetables in salt water is not very usable, especially for green vegetables, which can destroy the cytoplasm of green leaves.

Not only does it damage the nutrients, but it also has a high risk of pesticide residues entering the dish. Ma Zhiying, head of the expert committee of the Shanghai Food Association, stressed that salt water is not very effective in cleaning up pesticide residues, but it can help remove pests and diseases in fruits and vegetables, such as salt water can be soaked into large cherries, cauliflower and other fruits and vegetables Some small insects.

3. Add water to the water.

Alkali (soda. : If the concentration value is not well controlled, it is the same as tap water.

Zhu Yi emphasized that for commonly used pesticide residues, the effect of soda foaming is likely to be better. Soda and other edible bases.

It has a certain practical effect on the removal of methyl parathion pesticide residues, and the addition of 10% edible alkali in cold water has the best practical effect, and the sludge load of insecticide can be achieved. As everyone knows, the actual effect of edible alkali concentration value less than 2% or more than 15% is the same as that of tap water. Therefore, use alkaline water.

To clean fruits and vegetables, it is necessary to grasp the concentration value.

4. Rice water.

There is help, but you have to make sure that you have no residue.

The rice washing water that everyone commonly uses in daily life is actually weak alkaline water, which helps to clean up pesticide residues. However, some rice itself will have pesticide residues, and there may be uncertainties and risks in the rice washing water.

5. Detergent: If it is not advocated, it is likely to lead to secondary pollution.

You can't soak it, but if there's any residue, can it get to you? Who is responsible for eating problems, so these soaking in salt water and soaking with soda are the marketing strategies of salt and soda manufacturers. It's because I usually eat too little salt and soda, so soaking in water is different.

A bag of salt ran out after a few runs.

I think it should be soaked in salt water because it has a bactericidal effect and it also helps our health, so I think it should be soaked in salt water.

Vegetables and fruits should be soaked in salt water to better remove pesticide residues on vegetables and fruits.

I think the vegetables and fruits I bought should be soaked in salt water to destroy bacteria and wash them more cleanly.

Brackish water immersion is one of the ways to remove pesticide residues. When the salt concentration of the cell fluid in plants such as vegetables and fruits is lower than the salt concentration in the soaked water, the cells will lose water, and the process of water loss will lose some of the water-soluble pesticides remaining in the plant cells and reduce the residues of some pesticides. Some studies have found that 5% salt solution has a good effect on removing pesticide residues of methyl parathion, malathion, methamidophos and oxymethoate.

Soaking in an acid or alkaline solution can also help remove pesticide residues. For example, vitamin C, citric acid solution, etc. will remove pesticide residues such as profenofos, lindane, and DDT on potatoes; Sodium carbonate alkaline solution can remove residual organophosphorus pesticides.

Introduction:

Washing rice and washing vegetables and fruits is also one of the methods that can be used in daily life. Soak fruits and vegetables in rice washing water for a few minutes, and then wash them with water to reduce pesticide residues to varying degrees.

Boiling water heating can also remove some pesticides, such as celery, spinach, cauliflower, beans and other vegetables can be treated with boiling water before cleaning, and then soaked in clean water for cleaning, the pesticide removal rate can be as high as 90%. Do not treat boiling water for too long to reduce the loss of nutrients.

Soak for 30 minutes and you're good to go. Table salt is a great condiment, but it also has many extraordinary benefits. Let's find out! You definitely don't know these tips!

1. Athlete's foot.

Soak your feet in warm water and sprinkle some salt to kill bacteria and reduce inflammation. Soak it for about ten minutes and wash it with water, which has the effect of athlete's foot.

2. Brush your teeth to remove bacteria.

You can add a little salt to the toothpaste when brushing your teeth, which can effectively remove tartar from your mouth.

And bacteria, after brushing your teeth、Breath is particularly good。

3. Prevent hair loss.

Wash your hair every week with a little salt in warm water, which can effectively prevent hair loss and hair loss, and if you insist on it for a month, your hair will immediately become black and thick.

4. Sore throat.

Drink some salt water when your throat is swollen and sore, which can effectively ** make your throat uncomfortable, and drink some salt water before yelling can prevent your throat from being hoarse.

In the kitchen, salt is not only a condiment, but also has these extraordinary effects, hurry up and learn together!

1. Skillfully thawed products.

Put the frozen meat in the water and sprinkle a little salt to speed up the thawing!

Frozen fish, frozen meat, and frozen shrimp are placed in salt water, which can not only thaw quickly, but also keep the meat tender.

2. Decontaminate the oil pan.

1) Sprinkle a layer of salt in the pan, then add a little water and shake it for a while.

2) The salt water will slowly remove the grease and paste from the pan.

3. Tofu is not broken.

Before frying the tofu, cut it into pieces and add lightly salted water.

Soak for half an hour, and then stir-fry and cook the tofu so that it is not crumbly.

4. Prevent the aging of bamboo shoots.

After the bamboo shoots are bought, salt is applied to the incision so that the sweetness of the bamboo shoots can be preserved after the surface is dry.

5. Disinfection of cutting boards.

Fill the bowl with water and add more salt, so that the concentration of brine is higher. Then add an appropriate amount of vinegar, stir well, and use it to clean the cutting board to sterilize and disinfect.

6. Silver jewelry is brightened.

Put water in the pot, add a large amount of salt, put aluminum foil after the water boils, and then put in the oxidized and blackened silver, the salt and silver will have a chemical reaction.

The oxides on the surface of the silver jewelry will be reduced, and it will only take one minute to return your beautiful silver jewelry.

7. Fruits are not oxidized.

If the cut fruit can't be eaten in time, you might as well add some salt and soak it in water, which can effectively prevent the oxidation of the fruit, and the fruit is fresh for a long time, and the taste is better and sweeter.

8. Sterilization of melons, fruits and vegetables.

Soak fruits and vegetables in salt water for 20-30 minutes to remove residual pesticides and parasites.

eggs and a certain bactericidal effect.

9. Save seasonings and food.

Add a little salt to the milk, it is not easy to spoil, add a little salt to the vinegar, the vinegar is not moldy, and add a little salt to the sesame oil to keep it longer.

10. Marinate salted fish.

Salted fish has a lot of salt, so it is difficult to reduce its saltiness even if it is rinsed many times. The most effective method is to immerse the salted fish in brackish water at a concentration of 2 (using the difference in concentration between the two to form a "concentration pressure osmosis", so that the high concentration of salt in the salted fish penetrates into the low concentration of brackish water). After soaking for about 2 to 3 hours, remove the salted fish and rinse it with fresh water.

Salted fish treated in this way does not have a strong salty taste.

1. Soaking in light salt water: Generally, vegetables should be rinsed with water at least 3 to 6 times, then soaked in light salt water, and then rinsed with water 1 time. For cabbage vegetables, you can cut them first, soak them in clean water for 1 to 2 hours, and then rinse them with water to remove residual pesticides.

2. Alkali washing: To wash vegetables with alkali, first put a pinch of alkali powder, anhydrous calcium carbonate or glacial alkali, crystalline sodium carbonate in water, stir well, then put in vegetables, soak for 5 to 6 minutes, pour out alkaline water, and then rinse with water. Baking soda can also be used instead, but the soaking time is appropriately extended, generally about 15 minutes.

3. Wash with dish soap: dilute the dish soap to 300 times and wash it once, and then rinse it with water 1 to 2 times, which can remove germs, insect eggs and residual pesticides on the vegetables.

4. Soak in boiling water: The best way to remove some residual pesticides is to blanch, such as green peppers, cauliflower, beans, celery, etc., and it is best to blanch them with boiling water before putting them into the pot. According to the test, this method can remove 90% of the residual pesticides.

5. Disinfection with sunlight: the use of multispectral effect in sunlight to irradiate vegetables will decompose and destroy some residual pesticides in vegetables. It has been determined that vegetables and fruits are exposed to sunlight for 5 minutes, and the residue of organochlorine and organic mercury pesticides is lost by 60.

For vegetables that are convenient for storage, it is best to leave them for a period of time, and the oxygen in the air and the chromoenzymes in the vegetables have a certain decomposition effect on the residual pesticides. Therefore, after purchasing vegetables, they should be left at room temperature for about 24 hours, so that the average disappearance rate of residual chemical pesticides is 5.

6. Washing with rice washing water: washing vegetables with rice washing water can remove some pesticides remaining in vegetables. Because most of the organophosphorus pesticides such as methamidophos, phosphine, dichlorvos, and dimethoate are used to kill insects in China, these pesticides will lose their toxicity when they encounter acidic substances.

Soak in rice washing water for about 10 minutes and wash it with water to reduce the pesticide residue in vegetables.

How long should vegetables be soaked in salted water.

It is usually an hour, and the main thing is to buy fresh vegetables and wash them carefully. Soaking and scrubbing with salt water can reduce pesticide residues, as well as longer soaking time and less pesticide residues. Experiments have shown that tap water for 10-60 minutes, then soaked in a little vegetable scrubbing, can be removed by 15% pesticide residues - 60%.

Fruits and vegetables are more effective in soaking with a special detergent that reduces the adhesion of pesticides. Detergent diluted with water in the ratio of 1 above: 200 soaked fruits and vegetables, within 10-60 minutes, residual pesticides can be reduced by 50%-80%.

Especially after 10 minutes of pre-soaking, pesticide residues drop significantly, which can reach about 50%. Then, a little scrubbing, rinsing with clean water, can basically remove pesticide residues.

What are the best ways to wash vegetables.

Brackish water cleaning method.

After buying vegetables, wash them with water after picking them, at least after you change them, add a little salt to the washing pot, dilute them with water, soak the vegetables in light salted water, about half an hour, and then rinse them with water. Especially cabbage, cabbage and other vegetables, you must soak them in light salt water to better remove pesticide residues.

Baking soda cleaning method.

Buy a bag of baking soda, or alkaline noodles, pour it into a vegetable washing basin in an appropriate amount, soak the vegetables washed with water in it for a few minutes, then take them out and rinse them with water to cook.

Washing water washing method.

There are a lot of functions of rice water at home, and perhaps the most known by female friends is to use rice water to whiten **, hehe, in fact, rice water can also be used to clean vegetables. Similarly, soak the vegetables washed with clean water in rice washing water for about 10 minutes, and then wash them well. This practice has a great effect on pesticide residues in vegetables.

Sun cleaning method.

Don't laugh, Dudu giggled when he first heard about this method of cleaning vegetables, but now Dudu knows that it's not nonsense, don't believe you ask the nutritionists. Some vegetables should be properly exposed to sunlight, so that the pesticide residues in the vegetables will be partially decomposed.

Hot water scalding cleaning method.

Some vegetables must be scalded with boiling water, such as broccoli, such as celery, especially broccoli, northerners like to dip sauce to eat, the general practice is to blanch it with hot water and fish it out, directly dip that kind of horseradish to eat, this is very wrong, if you really want to eat, then you must use boiling water to scald, otherwise the pesticide residues on the vegetables will be very serious.