How long does it take to remove pesticide residues when vegetables are soaked in clean water?

Introduction: When eating vegetables, you should pay attention to cleaning, although vegetables have many benefits to the human body, but in the process of vegetable growth, you may also be exposed to too many pesticides, and eventually cause damage to the human body. How long can vegetables be soaked in clean water to remove pesticide residues?

In fact, pesticide residues do have a certain impact on people's dietary health, although most people cook vegetables. But it is inevitable that there will be some things that have not been completely eliminated, so it is still necessary to clean them. And after the vegetables are bought, there will indeed be a lot of dust and dirty things on them, and it is not hygienic to eat them in the mouth.

If you want to wash them, you can soak them in water for at least 10 minutes. If you soak for more than 10 minutes, you can soak most of the pesticide residues away, and if you have enough time, you can soak for a longer time. After soaking, scrub to remove pesticide residues from the surface of the vegetables.

However, it must be complete when soaking, do not cut and then wash, be sure to wash before chopping vegetables. In this way, it can be better removed and the nutrients will not be lost, so this situation is very necessary.

In fact, whether it is vegetables or meat, we should try to eat cooked food, and raw food is not suitable for human development. After all, since the use of fire, the human stomach has been suitable for eating cooked food, so in daily life, we still have to remember to cook the food, so that it can be better digested and absorbed by the human body. And try to peel the fruit yourself when you eat it, so that you can ensure your health.

There are some young people who like novelty things, so they like to eat raw food or sashimi.

These things will cause certain harm. And some of them seem cheap, but the eggs inside may not be brushed clean, which will lead to parasites.

Therefore, for the sake of physical health, it is necessary to eat more cooked food.

Vegetables can be soaked in water for 3 to 5 minutes, after soaking for a long time, vegetables are easy to be soaked in water, and if you want to remove pesticides on vegetables, you can use professional lotion.

For no less than 10 minutes, after soaking, wash three to five times with an appropriate amount of fruit and vegetable detergent to remove residual pesticides more thoroughly.

If vegetables are soaked in water for 10 to 60 minutes and then scrubbed, 20% to 60% of pesticide residues can be removed.

Soak for about 10 minutes and then wash with water several times to remove pesticide residues.

I think that soaking in warm water for about an hour will remove pesticide residues.

Bracketing vegetables in salt water does not remove pesticide residues. Although table salt has a certain sterilization and disinfection effect, for specific pesticide residues, salt water soaking can only play a certain dissolving role, and the dissolution effect is very limited, and it cannot reach the point of effective removal. And, for leafy greens, salt water can damage the cell membranes of the leaves.

Not only is it a loss of nutrients, but it is more likely that pesticide residues will enter the dish.

Methods for removing pesticide residues.

Usually wash vegetables and fruits at home, it is best to soak them in warm water (do not soak them for a long time, so as not to seep harmful substances into the vegetables and fruits), the temperature does not need to be too high, 40 degrees is appropriate, that is, the hand will not feel hot when you reach in, because the water is too hot will destroy the nutrients in the vegetables and fruits.

The taste of the food will not be good. After soaking in warm water, try to rinse several times with running water to remove most of the pesticide residues on fruits and vegetables.

Bracketing vegetables in salt water does not remove pesticide residues. Because the chemical composition of salt is relatively stable and does not easily react with other chemical components, even if a certain amount of salt is added to the water to soak fruits and vegetables, the actual effect is mainly water.

1. Soak in vinegar.

Vinegar is another way to remove residues from fruits and vegetables. Some people suggest that mixing vinegar and water in a 1:4 ratio will solve the problem of pesticide residues in about 20 minutes, while others believe that a full concentration of vinegar is needed to completely remove pesticides.

Vinegar also removes many types of bacteria that may be present on the surface of food. However, be aware that if you soak porous fruits (e.g. berries, etc.) in this vinegar solution, it may affect the taste.

2. Wash with baking soda.

Another way to wash off pesticides is to mix a teaspoon of baking soda with two glasses of water, soak the product in the solution for 12-15 minutes, and then rinse it off with water. But products like mushrooms should not be soaked for too long, as washing them for too long before eating them may speed up spoilage.

3. Wash and peel with cold water.

A study tested 12 pesticides and found that 9 of them were effectively reduced by rinsing with cold water. Of course, for peace of mind, it's best to peel the skin, although for many fruits and vegetables, the skin is often a nutritious resource as well.

Not less than 10 minutes.

It is mainly used for leafy vegetables, such as spinach, lettuce, bok choy, etc. Generally, the surface dirt is rinsed off with water first, and then soaked in water for no less than 10 minutes. If necessary, fruit and vegetable cleaning agents can be added to increase the dissolution of pesticides.

An appropriate concentration of salt water, i.e., sodium chloride solution, can accelerate the dissolution of some polar pesticide residues, so as to remove the pesticide residues on vegetables. First, wash off the mud and dirt on the surface of the vegetables with clean water, then soak them in salt water for 5-10 minutes, and then rinse them with clean water. Pay attention to the integrity of the surface of the vegetable when soaking in salt water, and do not pick it for the time being, so as to avoid the dissolved drug from adsorbing to the vegetable section again, causing the opposite effect.

Pesticide residue removal method:

1. Storage method.

Some pesticides can be slowly decomposed into harmless substances over time, so the amount of pesticide residues can be reduced by storing fruits and vegetables that are easy to preserve for a certain period of time. This method is suitable for non-perishable fruits and vegetables such as apples and winter melons. These fruits and vegetables are generally stored for more than 15 days to remove most of the pesticide residues.

2. Heating method.

Carbamate insecticides decompose faster with increasing temperature, so some pesticide residues can be removed by heating. This method can be used for celery, spinach, bok choy, cabbage, green peppers, cauliflower, beans, etc. Wash the surface of the vegetables with water first, then blanch them in boiling water for 2 5 minutes, and then rinse them with water 1 or 2 times.

When we buy vegetables, we are most worried that they will contain pesticides, so we will find a way to remove the residual pesticides after we buy them. I heard that soaking vegetables can help remove pesticide residues, so how long does it take to soak them to be effective?

1. How long to soak vegetables to remove pesticide residues.

Vegetables are generally soaked in water for 30 minutes, and then slightly scrubbed can play a good role in removing pesticide residues. If you use a special fruit and vegetable detergent, the soaking time can be controlled to about 20 minutes, and the final warm water rinse can also play a role in removing pesticide residues.

2. How to soak vegetables to remove pesticides has a good effect.

Soak fresh fruits and vegetables in detergent for 10-15 minutes, or tap water for 30 minutes, and rinse with water. If the skin needs to be peeled, direct peeling can effectively remove more pesticide residues.

3. The longer the vegetables are soaked, the better the effect of removing pesticides?

It is not that the longer the vegetables are soaked, the better the effect of removing pesticide residues. The harmful substances of pesticide residues in vegetables are key organochlorine and organophosphorus, organophosphorus is easy to decompose in water, and the longer the soaking time, the organic phosphorus can form a certain concentration in the water, and the vegetable is equivalent to absorbing the residual pesticide again. Therefore, the soaking time is generally about half an hour.

4. How to identify vegetables with pesticide residues.

When we buy vegetables, we should choose vegetables with normal shape and color, which are mostly cultivated artificially, and less hormones and fertilizers are applied. In addition, you can also choose organic vegetables or buy pesticide residue test cards for testing.

The best way to remove pesticides is to soak fresh fruits and vegetables in detergent for 10-15 minutes, or soak them in tap water for 30-60 minutes, and rinse them with clean water.

According to experts, leafy vegetables are prone to excessive pesticide residues, such as leeks and rape in the north, and greens, chicken hairy cabbage, mustard greens in the south. The pesticide test results of vegetable markets around the country showed that pesticide residues were easy to exceed the standard of Chinese cabbage, greens, chicken hair, leeks, cucumbers, cabbage, beans, mustard greens, chrysanthemum, etc. Among them, leeks and rape were polluted with pesticides in the largest proportion.

Because the green cabbage insect is more resistant to pesticides, it is difficult for ordinary insecticides to kill the pests, and vegetable farmers will choose highly toxic pesticides in order to kill the insects as soon as possible. Leek maggots, the insect pests of leeks, often grow in the body of vegetables, and it is difficult to spray insecticides on the surface, so many vegetable farmers use a large number of highly toxic insecticides to irrigate the roots, and the leeks themselves have a strong toxicity.

How to reduce pesticide residues in vegetables? According to the experts, the soaking water washing method can be used: first rinse off the dirt on the surface of the vegetables with water, and then soak them in water for 30 minutes, so that the repeated operation two to three times can basically remove most of the residual pesticides.

You can also use the alkaline water immersion method: first rinse the surface dirt of the vegetables, then soak them in alkaline water, the proportion is about 500 ml of water, add 5 to 10 grams of alkaline noodles, stay for 5 to 15 minutes, and then rinse repeatedly with water. Storage:

Pesticide residues on vegetables can slowly decompose over time, and non-perishable vegetables such as winter melon and pumpkin can be stored for a week before eating. Hot water method: often used in celery, spinach, green peppers, cauliflower, beans, etc.

Wash the dirt on the surface of the vegetables first, then put them in boiling water, remove them after 2 to 5 minutes, and wash them again once or twice with clean water.

1. Light salt water.

Soaking: Generally, vegetables should be rinsed with water at least 3 to 6 times, then soaked in lightly salted 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.

Stir well, then add the vegetables, soak for 5 to 6 minutes, and put the alkaline water.

Pour it out and rinse with water. Baking soda is also available.

instead, but appropriately extend the soaking time, generally about 15 minutes.

3. Use dish soap.

Wash: Dilute the dish soap to 300 times and wash it 1 to 2 times with clean water to remove germs, insect eggs and residual pesticides from 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 methamidophos and phosphine are used in China.

Dichlorvos, dimethoate.

and other organophosphorus pesticides to kill insects, and 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.

Tips for washing vegetables.

1. Some odorous raw materials should be washed with hot water. For example, soaking dried tofu in hot water can remove the beany smell. There are also some ingredients that are easy to remove the skin when washed with hot water, such as tomatoes.

2. Add some alkali to warm water, such a dilute alkali solution can play a role in deodorizing and peeling. For example, this is the case with washing and drying lotus seeds.

3. The washing of aquatic products must remove the blood and dirt, otherwise it will affect the color, aroma and taste of the dishes.

Vegetables do not need to be soaked when washing, just add some baking soda to the water and stir well, and put the greens in to wash.

For most of us, the quality of our life is getting higher and better. And we will also pay great attention to this aspect of diet, some people will have such doubts, that is, can the vegetables that have just been bought soaked in water remove the residual pesticides? In my personal opinion, I actually think it's okay, and we can also add some salt to the water, so let's take a closer look.

1 Absolutely

Now for most people, in fact, many times we buy things outside, some vegetables are unhealthy, because in this process, they are also pesticides, because when vegetables are growing, they will also suffer from a lot of pests and diseases, so if they are sown with pesticides, you can alleviate the phenomenon of the state, but when we buy such similar vegetables, we must soak it in water, and at the same time, we must wash it several times before we can remove those pesticides inside.

2 Put salt in the water

I believe that everyone has a certain understanding of the salt we eat, and we all know that if you put it in water and dissolve it with water, then you can wash vegetables with such a solution, it can have a disinfection effect, which is what we call salt water.

Therefore, we should pay more attention to this aspect of the problem in our daily life, for everyone, understanding this aspect of the problem, we have a certain benefit, and now we are in such an era, in fact, many times we buy outside things are unhealthy. So after we buy it, we have to clean it before we can use it. I believe we have all heard the saying that illness comes from the mouth, and disaster comes from the mouth, and if what we eat is unhealthy or stale food, then it is likely to endanger our health.