183/5000 According to solubility, pesticides can be divided into water soluble and fat soluble  The traditional method of soaking in water can only remove the water-soluble pesticides on the surface of fruits and vegetables, but can not remove the main residues of fat-soluble pesticides  Moreover, in the process of soaking, water-soluble pesticides will dissolve in water and form an aqueous solution with a certain concentration  If soaking time is too long, it is likely to lead to the re-adsorption of pesticides in water by fruits and vegetables, and also cause many water-soluble nutrients in vegetables, such as vitamin C
As well as calcium, magnesium, iron, zinc and other dissolved in water, resulting in the loss of its nutrients
Lipid soluble pesticides are more difficult to clean than water soluble pesticides