If this question is asked, you may consider cost, safety and functionality of stainless steel beer keg . A manufacturer is anticipated to make sure the origin of raw material, decrease the price for raw material and embrace innovative technologies, in order to improve the performance-cost ratio. Today most of the manufacturers would examine their raw materials prior to processing. Institutions are always invited to test the materials and issue test reports. Strong cooperation with raw material suppliers is of great significance to the stainless steel beer keg manufacturer. This usually means that their raw materials would be guaranteed by cost, quality and quantity. We only use high quality food grade AISI 304 material to produce beer kegs. POSCO supply stainless steel raw material to our factory.