Formaldehyde is easily soluble in water and volatile. After careful cleaning, the vegetables bought from the market have little residue and can be safely eaten. After people buy food, it is best to peel off the outer layer and wash it with clear water several times. If time permits, it is best to soak in a bubble, which can basically wash off the formaldehyde solution.
Formaldehyde is a protoplasm poison, which destroys the protein of biological cells, damages human skin, respiratory tract and internal organs, anesthetizes people's central nervous system and causes pulmonary edema, hepatic coma and renal failure. The World Health Organization has confirmed that formaldehyde has teratogenic and carcinogenic effects, and long-term exposure will lead to gene mutation.
Washing vegetables is actually nothing more than soaking for a while, but there are ways to soak. First, you have to know what to soak them in. Bian Xiao suggested that you soak them in salt water. Everyone knows that salt water has the function of disinfection and sterilization. Then we can soak the vegetables we bought home in salt water 10 minutes or so.
In addition to pickles with salt water, soda water can also be used to wash vegetables. What is needed is baking soda. We can add baking soda according to the amount of vegetables. After adding the vegetables, we put them in for cleaning, then soak them for about 10 minutes, and finally rinse them with clear water. These two methods are tips for removing pesticide residues and formaldehyde.