1, official website query: You can query the authenticity of the goods by entering barcode information on the commodity verification page in official website, Grain Rain. Usually, official website will provide such inquiry service.
2. Consult customer service: If you have any questions about the authenticity of the product, you can contact Grain Rain customer service to provide the barcode information of the product, and the customer service staff will check the authenticity of the product for you.