In February 2023, Mars Wrigley China announced to use 100% recycled polyethylene terephthalate (rPET) materials for the production of canister lid of a chocolate brand named Cui Xiang Mi. According to Mars, the replacement of traditional plastics with rPET will save 36 tons of virgin plastics annually. Along with the increasing awareness of environmental protection in China, such campaigns1 can absolutely gain brand reputation among consumers and meet China’s “carbon peak & carbon neutrality” goals2 (also called dual carbon goals). But to what extent has Chinese consumers’ environmental protection awareness been increased, especially when it comes to the food industry?