According to this TikToker, soaking grapes in saltwater increases the amount of pesticides that soak into the fruit. It is recommended to soak the grapes in freshly washed rice water, and if there is no rice water available, washing the grapes with fruit wash is better.
In response to these claims, Professor Nguyen Duy Thinh (former lecturer at the Institute of Biotechnology and Food Technology, Hanoi University of Technology) shared that in reality, encouraging the use of water for washing fruits and vegetables, as claimed by Tiktok users, is only a personal opinion.
“Currently, no state-certified organization has certified any type of water that can effectively remove pesticides.” In addition, the statements about cleaning fruits and vegetables are not entirely accurate, said the expert, who clarified the following:
1. Soaking grapes in saltwater does not make the pesticides penetrate deeper into the fruit.
Professor Nguyen Duy Thinh said that soaking fruits and vegetables in saltwater to remove dirt and reduce pesticide residues is a common practice that many people follow. Many housewives believe that sea salt is one of the strongest natural antibacterial agents, able to “pull” chemicals out of food without harming health.
Therefore, we still soak fruits and vegetables in saltwater to disinfect them, especially with raw vegetables. However, this method does not kill nematodes or bacteria as many people think.
Soaking fruits and vegetables in saltwater to remove dirt and reduce pesticide residues is a common practice that many people follow.
Soaking fruits and vegetables in saltwater only inhibits or kills bacteria to a certain extent rather than automatically removing harmful chemicals in food.
Soaking fruits and vegetables with diluted saltwater does not clean them more effectively than washing with plain water.
In addition, soaking grapes in saltwater does not make the pesticides penetrate deeper into the fruit, causing harm to consumers’ health. “This is an unfounded opinion. Soaking grapes in saltwater does not make the fruit absorb more pesticide residues,” said the expert.
Soaking grapes in saltwater does not make the fruit absorb more pesticide residues.
2. Rice water is not “magical” enough to remove pesticide residues from fruits and vegetables.
According to Professor Nguyen Duy Thinh, rice water only partially dissolves or cleanses fruits and vegetables if they have a small amount of plant protection chemicals that are not acutely toxic.
“When fruits and vegetables contain high levels of chemicals and have absorbed them, rice water also has no effect in removing them. In fact, soaking them only has a psychological effect,” the expert affirmed.
If you use rice water, it is important to note that allowing the rice water to ferment will have a greater effect and can be used for washing dishes. When rice water ferments, it converts starch and vitamin B1 into lactic acid, which has a higher ability to remove residues and stronger effects.
3. How should fruits and vegetables be washed?
The answer is simple: clean water. All you need to do is wash fruits and vegetables with clean water several times. This is the simplest, most cost-effective, efficient, and safest solution. It washes away dirt, bacteria, and reduces the amount of pesticide residue on the surface of fruits and vegetables. Through repeated washing with clean water, these residues are gradually washed away.
“Note that this method has some effect on fruits and vegetables that have been sprayed with pesticides on the surface. For vegetables and fruits that have absorbed pesticides from the inside, no matter what you wash them with, you cannot completely remove the residue. For those types of fruits and vegetables, it is best to discard them without hesitation for the sake of your health,” the expert added.
According to Tổ Quốc
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