Double-label liquor means that liquor products have both the **green food trademark and the **pure grain brewing **mark.

The green food trademark is certified by the China Green Food Development Center and has obtained the right to use the green food mark trademark. It indicates that it is pollution-free, safe, high-quality and nutritious food. The use period of this mark is 3 years.

The pure grain solid-state fermented liquor logo is a liquor with this logo. It must be a pure grain liquor obtained by processing grain koji, natural solid-state fermentation, high-temperature distillation, and aging.