Sales of food or food with machine, some mark green food, and the standard pollution-free agricultural products, a lot of people think that these foods are, in fact, these three kinds of food difference is great.

( 1) in the input products, organic food demand no synthetic fertilizers, pesticides, growth regulators and feed additives; green food requirements allow the use of defined chemical synthesis production data, the use quantity, frequency of use is limited; pollution-free agricultural requirements in strict accordance with the provisions of the use of agricultural inputs, prohibit the use of the national disabled, eliminated the agricultural inputs.

( 2) in genetic engineering, organic food to ban the use of genetically modified seeds, seedlings and all genetic engineering technologies and products; green food requirements are not allowed to use transgenic technology; and pollution-free agricultural products is no restriction.

( 3) in the system of production, organic food requires the establishment of organic agricultural production technology supporting system, and from traditional agriculture to organic agriculture usually takes 2 to 3 years transition period; green food requirements can be applied to conventional agricultural production system, no conversion period requirement; pollution-free agricultural products and conventional agricultural production system is basically the same, there were no conversion period requirement.

( 4) the quality of taste, most organic food tastes good, nutrition, high dry matter content; requirements of green food taste, nutrition is better than conventional food; pollution-free agricultural products, taste, nutrition ingredient and conventional food basic indifference.

( 5) in the residues of harmful substances, organic food chemical pesticide residues ( below the instrument detection limit ). Green food most harmful substances allows residue and conventional food national standards are basically the same, but some indicators strict national standards for conventional foods, such as cucumber green standards dichlorvos < 0.1mg / kg, conventional cucumber national standards of dichlorvos and 0.2mg / kg; pollution-free agricultural products, pesticides and other harmful substances allows residue and conventional national standards for food requirements are basically the same, but more emphasis on safety index.

( 6) within the valid period of the certificate, valid for a period of 1 years of organic food, green food and pollution-free agricultural products effective period is 3 years.