look at the package. There is a date on the package. Salt and pepper powder is a seasoning. Pepper and salt powder is a common food seasoning in various regions of China, which is generally made by frying pepper and salt, crushing, stirring and drying. Zanthoxylum bungeanum granules are ground into powder after being fried and fragrant, and if fried salt is added, it becomes pepper salt, which is commonly used for dipping in fried food, and is one of the common flavors of Sichuan cuisine and Shandong cuisine, and is mostly used for hot dishes.