Consumers should recognize the "signs" when purchasing such foods. The green food logo consists of three parts, namely: the sun above, the leaves below and the bud in the center. The logo is a perfect circle, which means protection and safety. The A-level mark has white characters on a green background, and the AA-level mark has green characters on a white background. This mark is recognized and issued by the China Green Food Association.

The Green Food Mark is a quality certification trademark registered by the China Green Food Development Center in the Trademark Office of the State Administration for Industry and Commerce. As a type of trademark, the mark has the universal characteristics of a trademark and will only generate value when used. If the green food logo is not used for a long time after obtaining the right to use the logo, it will also hinder the management of the China Green Center. Therefore, companies should use green food labels as soon as possible.