The sources of deep well rock salt and table salt are different. Deep well rock salt comes from less than 500 meters underground. This kind of salt contains more natural elements. Most of the salt we eat in our daily lives is low-sodium salt, which has fewer mineral elements than deep well salt. When storing salt, you need to pay attention. Table salt is easily soluble in water. This kind of salt is highly hygroscopic. If it is exposed to the air for a long time, it will easily crystallize, so it needs to be sealed when storing salt. Edible salt required”