What is the symbol of real food?

Food safety risk management and control system-provided by Food 580, green food is the general name of pollution-free, safe, high-quality and nutritious food in China. China Green Food Development Center classifies green food as Grade A and Grade AA. Class A allows limited use of limited chemical synthetic substances, while Class AA prohibits the use. Grade a and AA belong to green food. AA-level green food signs and fonts are green and the background color is white; A-level green food signs and fonts are white, and the background color is green.