Pollution-free food refers to pollution-free, non-toxic, safe and high-quality food, which is called pollution-free food, ecological food and natural food abroad. In China, the environment of pollution-free food production sites is clean, production is carried out according to the specified technical operation procedures, harmful substances are controlled within the specified standards, and foods marked with pollution-free food can be used only after approval by the department.
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Pollution-free vegetables mean that commercial vegetables do not contain toxic substances that are not allowed in relevant laws and regulations, and some harmful substances are controlled within the scope allowed by standards to ensure the food safety of the people. Pollution-free vegetables should be "high-quality and hygienic" "High quality" means good quality, beautiful appearance, high content of Vc and soluble sugar, which meets the nutritional requirements of commodities. "Hygiene" means that the three pesticides do not exceed the standard, that is, the pesticide residues do not exceed the standard allowable amount, and the nitrate content does not exceed the standard, which is generally controlled below 432ppm; The content of harmful substances caused by industrial wastes, pathogenic bacteria and microorganisms on commercial vegetables does not exceed the standard.
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