Master Kong's selection of materials is basically his own, but it is much better than the raw materials purchased by the family. As for the same product produced in different regions, the R&D department of the headquarters will make fine adjustments according to the locality (for example, the content of salt and sugar will be modified according to the principle of sweet in the south and salty in the north). But in addition, if there are obvious differences in taste, you can complain to the local customer service department, and they will check whether the conditioning department has cut corners when producing the batch according to the batch number. If there is any defect, it will be given to the same brand goods as compensation according to the severity.