Bai Gang basin is made of metal, and acidic substances will react with the metal, causing the basin to be corroded and releasing harmful substances. In order to obtain high-quality pickles, it is best to choose ceramic pots or glass containers. These two materials are relatively stable, do not have adverse reactions with kimchi, and can effectively maintain the quality and taste of kimchi. Using suitable containers can ensure the safety of pickling process and the quality of pickles.