What are the methods for removing pesticide residues from fruits and vegetables? What to look out fo

With the continuous improvement of our living standards, we are paying more and more attention to our health. Especially for their own healthy diet, many people are worried about how to remove some pesticide residues from fruits and vegetables after buying fruits. Because they think that if pesticide residues are eaten into their bodies, they will have a very serious impact on their health, so today we are going to talk about how to remove pesticide residues from fruits and vegetables, and what do we need to pay attention to?

The use of brine or alkaline water is first of all to use some salt water or alkaline water to remove some pesticide residues on crops in life, so when we use these methods, we need to pay attention to our concentration. That is to say, we need to add 20 grams of salt or alkali to be able to remove these agricultural products, if this concentration is not reached, it is very likely that the effect of our cleaning is no different from the effect of washing with water. It can even lead to the loss of some nutrients in fruits, so we must pay attention to our own methods when cleaning fruits and vegetables.

Ultrasonic removal, then the second is that we can use some ultrasonic waves to remove these agricultural products, so the principle is that we need to convert electrical energy into this high-frequency vibration. Moreover, many cavitations and these bubbles can be created in the water, and then some dust on the fruits and vegetables can be removed after continuous expansion. Some of the dirt is peeled and crushed, so that all the dirt on the surface of the fruit and vegetables can be washed away.

With ozone, then the last method is that we can use ozone to remove agricultural products, and we can use these pesticide components to oxidize, and then achieve the effect of removing agricultural products. But this ozone treatment takes 20 to 30 minutes, so when we are using these methods, we need to pay attention to this time. If the time is not enough, then there is no way to remove it completely.

And this is only an energy residue on the surface of fruits and vegetables, if you want to remove the deep layer, then this method is not possible.

There are methods, the first is the water soaking method, you can put the fruits and vegetables into the water to soak for half an hour, you can effectively remove bacteria and pesticides, the second method is the alkaline water immersion method, the casserole vegetables are soaked in alkaline water, about 30 minutes or so pesticides and other substances will be decomposed. The third method is heating cooking, you can put celery, cabbage, green pepper and beans into the pot to heat, which can effectively remove bacteria, and the fourth method is to clean and peel the skin, which can remove the skin of some fruits, which can effectively remove pesticides and other bacteria. In the process of removing strong tea or bacteria, we must soak and clean it repeatedly, so that we can effectively remove these stains, and also keep fruits and vegetables fresh, and the detergent purchased must be bought in the supermarket, which is more secure and safer.

First, you can use ordinary detergents, second, you can use hot water to wash, and third, you can also use professional instruments to clean pesticide residues on fruits and vegetables. It should be noted that no matter which method is used, all residues should be washed away so that it is not harmful to the human body.

It can be removed with some special cleaning products, peeling, soaking in alkaline water, soaking in water, or soaking in edible vinegar, or soaking in flour.

Use soaking water, but the soaking time should not exceed 10 minutes, so as to avoid pesticide residues on the surface from penetrating into the vegetables. Peeling is a good way to remove pesticide residues. During processing, it is necessary to prevent the peeled vegetables and fruits from being mixed and polluted again.

It should be soaked in salt water or rice water for 10 minutes, and then washed with water several times, which should be able to remove pesticide residues. It should be noted that it is impossible to completely remove pesticide residues. This is because in addition to pesticide residues on the surface that can be removed, residues that are absorbed through the root system are difficult to remove.

First of all, we can wash it with salt water, or we can wash it with a special fruit and vegetable cleaner, and we can remove it with ultrasonic, or we can choose to remove it with ozone. These are all very good ways, but be careful to wash them with running water when cleaning.

After picking them off, they should be cleaned, when cleaning, alkali and salt can be prepared for scrubbing, you can remove the pesticide on the surface, you can soak for 4 hours and then eat, you can also remove, or directly clean with salt water, soak for a while, and scrub repeatedly.

You can buy special fruit and vegetable cleaners, you can also use salt water to remove pesticides, or high-temperature blanching, which is very good, can well remove pesticide residues in vegetables, and will not destroy the nutrients in vegetables.

You can buy professional dish soap to clean fruits and vegetables, or put some alkali in the water, soak it for about 20 minutes, and then wash it with water, which can effectively remove pesticide residues in fruits and vegetables.

Rinse the purchased vegetables with water 2-3 times and soak them in clean water for 1-2 hours to remove pesticides from the remaining surface. You can also add a small amount of dish soap to water and soak it for 10 minutes, which can transfer most of the pesticides on the surface to the dish soap solution. Pesticides can be slowly decomposed into harmless substances over time, so the fruits and vegetables that are easy to preserve can be stored for a certain period of time to reduce the amount of pesticide residues.

For those fruits and vegetables with waxy surfaces, water-soluble pesticides are difficult to penetrate, and fat-soluble pesticides are generally fixed in the waxy layer, so peeling is a very reliable way, which can remove more than 90% of pesticide residues.

Boiling water blanching method, this method is only suitable for some vegetables, for some leafy vegetables is not applicable, such as beans, cauliflower and green peppers, etc., but the operation of this method must be technical, otherwise it will affect the production and cooking of vegetables. Add auxiliary agent soaking washing method, you can add alkali, baking soda, fruit and vegetable cleaning agent and rice washing water for soaking and washing, soak vegetables and fruits in such water for 5 to 15 minutes, you can remove the organophosphorus insecticides contained in the surface of vegetables and fruits, now fruit farmers are almost bagging, spraying pesticides are isolated by fruit bags, so the bagged fruit is washed with water.

<> washing is the basic method of removing other dirt and residual pesticides on vegetables and fruits, mainly used for leafy vegetables, such as spinach, daylily, leeks, lettuce, etc., but vegetables soaked in water for a long time will lose a lot of vitamins and minerals contained in them; Some pesticides, such as most organophosphorus, are more soluble in acidic environments, some such as organochlorines are more soluble in alkaline environments, and some pesticides, such as malathion, can be decomposed in acidic or alkaline environments.

In addition to this, the ozone generator can also remove waste and toxins from the body, including urate crystals, homocysteine, oxidized autoradicals, low-density lipoproteins, and acid toxins.

Peel. This should be the simplest and most effective method, but it is mainly for fruits and vegetables with skin, and pesticide residues are mainly concentrated in the peel area, and the pesticides that can penetrate into the pulp are very small. Soak in water and rinse repeatedly.

You can add alkaline flour and flour to remove stains and residues.

Mainly: peeling method, water immersion method, alkaline water immersion method, rice water immersion method, biological digestion enzyme removal method, storage method, heating method, the use of ultrasonic fruit and vegetable pesticide residue cleaning machine and other methods, according to the different types of fruits and vegetables, to choose the appropriate method to remove the residual pesticides on the surface of fruits and vegetables.

Try to peel all melons and vegetables with skin, because pesticides can easily stick to the skin. However, removing the skin will also lose some of its nutrients. When washing vegetables, especially those with hearts, be sure to cut them first, then soak them in salt water for one to two hours, and then rinse them with clean water to remove any residual pesticides.

We all know that we buy vegetables and fruits in the vegetable field or supermarket have pesticide residues, chemical pesticides can not be removed by ordinary washing, so that after being eaten by the human body, it is easy to accumulate in the body, not only will have direct harm to humans and animals, but also will destroy the function of the liver, lead to cancer, pregnant women accidentally eat vegetables containing pesticide residues will likely produce deformed freaks, serious may cause acute kidney failure and death. Therefore, learning how to effectively remove pesticide residues from fruits and vegetables is a must-have common sense for every family.

It is important to know that due to the different forms of each vegetable and fruit, the parts of pesticide residues are also different, and the methods of removing pesticides are also different.

1. Alkaline water soaking

Organophosphate insecticides can decompose quickly in an alkaline environment, so this method is suitable for all kinds of vegetables and fruits. The method is to add 5 to 10 grams of alkaline noodles to 500 ml of water, rinse the dirt on the surface of vegetables and fruits, soak them in alkaline water for 5 to 15 minutes, and then rinse them with water 3 to 5 times.

2. Peel

Peeling is a good way to remove pesticide residues. It can be used for apples, pears, kiwis, cucumbers, carrots, winter melons, pumpkins, zucchini, eggplants, turnips, etc.

3. Soaking

The pesticide varieties polluted by vegetables are mainly organophosphorus insecticides, and the organophosphorus insecticides are insoluble in water, and this method can only remove part of the polluted pesticides. However, washing is the basic method of removing other dirt and removing residual pesticides on vegetables and fruits, and is mainly used for leafy vegetables, such as spinach, enoki, leek flowers, lettuce, cabbage, etc. Generally, the surface dirt is rinsed off with water first, and then soaked in water for no less than 10 minutes.

Fruit and vegetable cleaning agent can increase the dissolution of pesticides, so a small amount of fruit and vegetable cleaning agent can be added when soaking. After soaking, rinse with running water two or three times.

4. The storage family is rotten

Pesticides can slowly decompose into harmless substances over time during storage. Therefore, fruits and vegetables that are easy to preserve can be stored for a certain period of time with less pesticide residues. It is suitable for non-perishable species such as apples, kiwifruit, and winter melons.

Generally, it is stored for more than 15 days.

5. Heating

Carbamate insecticides decompose faster as the temperature increases. Therefore, some vegetables and fruits that are difficult to treat by other methods can be removed by heating. It is often used in celery, spinach, bok choy, cabbage, green pepper, cauliflower, beans, etc.

Wash the surface dirt with clean water, put it in boiling water for 2 to 5 minutes and remove it, then wash it with clean water.

One or two times. These methods are effective methods to remove ordinary pesticides, although these methods are slightly more cumbersome than our daily cleaning, but the body is our own, and these more steps are also responsible for our body, so we must not be lazy.

1. Peeling method.

The amount of pesticides on the surface of fruits and vegetables is relatively large, so peeling is a better way to remove residual pesticides, which can be applied to pears, apples, kiwifruit, cucumbers, winter melons, pumpkins, eggplants, radish, zucchini, carrots, etc.

2. Water immersion method.

Generally, vegetables and fruits need to be rinsed with water for about 3-6 times, and then rinsed in light salt water for 1 time, for the heart-wrapped vegetables, you can use a knife to cut first, and then soak in clean water for 1-2 hours, and finally rinse with water to remove residual pesticides.

3. Alkaline water immersion method.

Organophosphorus insecticides can be quickly decomposed in an alkaline environment, so this method can effectively remove pesticide residues, first of all, the dirt on the surface of vegetables and fruits can be rinsed, and then soaked in alkaline water for about 5-15 minutes, generally 500 ml of water can be added to 5-10 grams of alkaline surface, and then taken out and rinsed with water 3-5 times.

4. Rice washing water soaking method.

The use of rice washing fruits and vegetables, can effectively remove part of the pesticides remaining on the fruits and vegetables, at present, most of the domestic use of dimethoate, methamidophos, phosphine, dichlorvos and other organophosphorus pesticides for insecticide, because these pesticides will lose their toxicity when they encounter acidic substances, so they can be soaked in rice water for about 10 minutes, and then take out and rinse with clean water, so that the residual pesticide components on the surface of fruits and vegetables can be reduced.

5. Biological digestion enzyme removal method.

When removing the residual pesticides of vegetables and fruits, you can put 1 individually packaged biological digestion enzyme in clean water, and then soak vegetables and fruits for 8-15 minutes.

6. Heating method.

For carbamate insecticides, they will decompose rapidly with the increase of temperature, so for some fruits and vegetables that are difficult to be treated by other methods, some pesticides can be removed by heating, which can generally be applied to celery, spinach, green peppers, cauliflower, beans, cabbage, cabbage, etc., you can first wash the dirt on the surface of fruits and vegetables with water, and then put them in boiling water for 2-5 minutes, and then take them out and rinse them with water for 1-2 times.