Article 21 any standardized packaged food or food additive must , according to the requirements for different products , have the name of the product , the place of manufacture , the name of the factory , the date of manufacture , the batch number ( or code number ) , the specifications , the formula or principal ingredients , the date of expiration for guaranteed quality , the method of consumption or use , and other such information indicated in the label of the package or the product description 第二十一条定型包装食品和食品添加剂，必须在包装标识或者产品说明书上根据不同产品分别按规定标出品名、产地、厂名、生产日期、批号或者代号、规格、配方或者主要成分、保存期限、食用或者使用方法等。
A consumer shall have the right to require relevant information of a business operator providing commodities on price , place of origin , producer , usage , functions , specifications , grade , main ingredients , date of production , date of expiry , certificate of inspection , operation manual and after - sale service , or of contents , specifications and fees of services in respect of commodities or services as the situation requires 消费者有权根据商品或者服务的不同情况，要求经营者提供商品的价格、产地、生产者、用途、性能、规格、等级、主要成份、生产日期、有效期限、检验合格证明、使用方法说明书、售后服务，或者服务的内容、规格、费用等有关情况。
