Are the blue particles on vegetables a pesticide or something else?

After eating vegetables for so many years, do you know what the blue particles on them are? Fortunately, it is clear that there are blue particles on vegetables, and what blue particles are, which is a reagent that kills snails and various snails. If it can be harmful to your body, I hope this life hack can help you.

Many people have the experience of buying vegetables in daily life, and for some careful people, they will find that there are blue particles on the vegetables when buying vegetables. This is where the question arises: what are the blue particles on vegetables? Is it harmful to the human body after use?

What exactly are blue particles on vegetables?

If blue particles are found on vegetables during the purchase process, if this blue particles can be wiped off, it is actually a pesticide residue. But some are also residues of fungicide drugs. And these substances will generally remain on vegetables, which is a normal phenomenon.

And this situation is generally divided into three kinds, the first copper sulfate crystal, the second bactericidal solution, and the third snailicide.

1.Copper sulphate crystals. For those who farm, it should be known that many types of vegetables can cause insect infestations.

In order to ensure that the harm of these pests is avoided, the yield of the later stage is guaranteed. In this case, pesticides are naturally used, and when pesticides are sprayed on vegetables, as the vegetables continue to grow, copper sulfate crystals will remain on the vegetables more or less, and eventually form this state.

2.Sterilizing solution. For those who grow vegetables, they know that vegetables are the same as humans, and if they are not cared for, they can easily get sick.

In order to avoid such a occurrence, people who grow vegetables will also spray some fungicidal solution on vegetables, so as to avoid vegetables from getting sick and reduce maintenance costs. However, the sterilization solution remains on the vegetables, and this problem can occur when the vegetables grow up.

3.Snacides. If such a situation is found on vegetables, it cannot be ruled out that it is a pesticide residue left by the snailicide.

The main reason is that when the vegetables are about to ripen, insect infestations will occur, which affects the yield. Because in the process of growing vegetables, some insect pests may appear, such as insects, snails and other organisms. In order to improve the yield and appearance of vegetables, snailicides are used, which leads to this behavior of vegetables.

Summary. This phenomenon is actually a normal phenomenon on vegetables, but when the vegetables are bought home, they can be soaked in appropriate flour for a while, so that the corresponding pesticides can also be removed. Because some pesticides will not cause harm to the body when exposed to water.

The blue particles on vegetables are a pesticide called tetraacetaldehyde. The appearance is light blue, softens when exposed to water, and has a special fragrance. It is mainly used to eliminate snails, slugs and other mollusc pests.

Therefore, vegetables must be thoroughly rinsed before eating, and if necessary, they can be soaked in salt water to minimize pesticide residues.

I often see blue particles on vegetables, which is a pesticide called tetraacetaldehyde.

This is a pesticide residue, which is a normal phenomenon, and it is basically found on vegetables nowadays.

When buying vegetables, you can often see blue liquid or particulate matter on the vegetables, and this kind of thing appears because the farmers have sterilized the plants. If you spray this liquid on top of the vegetables, you can remove some of the pests inside. It is necessary to ensure that the vegetables have a good appearance when they are sold, so as not to affect the overall **.

When farmers plant vegetable fields, they will spray some more or less, and it is normal to see this phenomenon. It's a good idea to do a careful check after buying vegetables to see if there are any bugs on them. <>

During the growth of vegetables, it is common to see snails crawling on them. Although the snail is a harmless animal, the liquid can affect the vegetables. Farmers will spray these blue things on the leaves of the plants, which can kill soft pests and make the vegetables grow more vigorously.

With this phenomenon, it will become very convenient in the process of planting. When selling vegetables, as long as the wind blows the contents off it, it will naturally turn into a blue particle. <>

Vegetable cleaning must also be in place, otherwise it will also have a great impact on the body. You can remove some of the rotten leaves and leave the vegetables in water for half an hour. You can put a spoonful of salt during the soaking process, because the salt can destroy some insects.

If you don't wash it cleanly, you may eat some of the harmful substances in your stomach, and there is no way to ensure your health. If you are afraid that you will not be able to wash it cleanly, you can rinse it again with water after soaking. <>

In general, it is understandable that farmers use this method to protect vegetables, after all, they make money from vegetables. Nowadays, people in the city will choose a good one and look good when buying vegetables, and if they don't use these methods, the insects will bite into small holes in the vegetables one after another. Green vegetables are actually very nutritious, and there are a number of other eco-friendly ways that farmers can take advantage of.

It is not only necessary to let consumers feel at ease when buying, but also to eat without any harm.

This vegetable is still edible. Generally, the blue liquid or particles we see on vegetables are disinfectants used for sterilization and disinfection, and its presence can ensure that vegetables are more resistant to transportation and not easy to damage. You only need to clean these disinfectant solutions or particles and you can eat them with confidence.

This vegetable should not be eaten because if there is a blue liquid or particles on the vegetable, it is likely that it will not be clean, so the best thing to do is not to eat it.

This is edible, which is caused by factors such as freezing or squeezing during the transportation of vegetables, and it is not that there is a quality problem with the vegetables, so you can eat it with confidence.

Summary. Blue-green or green is tetraacetaldehyde, which is a special pesticide that kills mollusks, such as snails and slugs, and is also used as a solid fuel. Insoluble in water, soluble in benzene and chloroform, easy to depolymerize when heated or acid, not photolyzed, not hydrolyzed.

According to China's pesticide toxicity grading standards, the drug is a moderately toxic snailicide. A related tetraacetaldehyde toxicity test has shown that acute toxicity such as convulsive or seizure threshold impairing, respiratory toxicity, nutritional and metabolic system toxicity will occur when the adult dose is 343 mg kg, and convulsions or seizure threshold will be affected when the dose of 100 mg kg is used in children. It should not be allowed to have vegetables on the market.

If it is copper sulfate pentahydrate, that is, blue alum, it is blue and easy to hydrolyze. Both of these things are used, with the latter having a patina smell and being relatively safe.

What is the blue-green powder in vegetable leaves?

Hello, I am helping you to inquire about the relevant information and will reply to you immediately.

Blue-green or green is tetraacetaldehyde, which is a special pesticide that kills mollusks, such as snails and slugs, and is also used as a solid fuel. Insoluble in water, soluble in benzene and chloroform, easy to depolymerize when heated or acid, not photolyzed, not hydrolyzed. According to China's pesticide toxicity grading standards, the drug is a moderately toxic snailicide.

A related tetraacetaldehyde toxicity test has shown that acute toxicity such as convulsive or seizure threshold impairing, respiratory toxicity, nutritional and metabolic system toxicity will occur when the adult dose is 343 mg kg, and convulsions or seizure threshold will be affected when the dose of 100 mg kg is used in children. It should not be allowed to have vegetables on the market. If it is copper sulfate pentahydrate, that is, blue alum, it is blue and easy to hydrolyze.

Both of these things are used, with the latter having a patina smell and being relatively safe.

The pellets are blue and may be an insecticide or fungicide containing a copper-containing preparation.

Reasons: 1. The slug reproduction ability of cruciferous vegetables such as cabbage and milk cabbage is very strong, and the greenhouse environment with high temperature and humidity is the most suitable for the growth of slugs;

2. When vegetable farmers eliminate slugs in endless greenhouses, they may use insecticides. However, according to the regulations, the pesticide application must be stopped for a week before the vegetables are picked;

3. Usually blue pesticides contain copper preparations, even if they have been cleaned, try not to eat, the liquid medicine is not only attached to the surface, it is very likely to enter the blind vegetable tissue, organic copper is harmful to the body, hurts the liver and kidneys.

The greens I bought this second time have blue particles!

Answer: If there are blue particles that can be wiped off on vegetables, in general, they are pesticide residues, some are fungicide drugs, some are insecticide drugs, and this substance has residues on many vegetables, such as celery, cabbage, spinach, lettuce, broccoli, etc.

1. Copper sulfate crystals.

Farmers who farm the land know that when planting fruit trees or vegetables, some pests and diseases will occur, in order to avoid the harm of these pests. To ensure the yield in the later stage, farmers have to spray pesticides to prevent these pests, so they will spray some of these drugs on the vegetables, and when the vegetables are ripe, they may also remain on the leaves of the vegetables. In fact, these residues are also medicines to prevent pests.

Copper sulfate + calcium hydroxide reaction to generate copper hydroxide precipitation + calcium sulfate (slightly soluble), which is the reaction of making pesticide Bordeaux liquid, Bordeaux liquid is an inorganic copper fungicide.

This fungicide, by releasing copper ions evenly covering the surface of the plant, prevents the invasion of harmful bacteria and plays a protective role, and the bacteria will also be killed when they come into contact with copper ions, but have no effect on the plant itself, and belong to the residue-free and pollution-free preparation. In addition, because copper ions are only attached to the surface, even if there is a blue powdery residue, it is not difficult to remove, and it can be cleaned cleanly, which does not affect consumption and is harmless to the body. If the public finds the residue of Bordeaux liquid on fruits and vegetables, do not be nervous, just wash it well, "rinse it with tap water, and wash it again in cool boiled water, there will be no problem." ”