Zigong salt well can be eaten for a long time, because Zigong salt well is one of the famous salt-producing areas in China and is rich in salt resources. To enlarge, the salt in Zigong salt well is formed by evaporation and crystallization of underground brine, with pure salinity and rich mineral content. This makes the salt in Zigong Salt Well healthier and more nutritious. In addition, the shelf life of salt is very long, so long as it is properly preserved, it can generally be preserved for a long time without deterioration. Therefore, as long as it is stored correctly, the salt in Zigong Salt Well can be supplied for a long time. It should be noted that salt may agglomerate when stored for a long time, but it can be used normally as long as it is lightly mashed or soaked in warm water. In a word, the salt in Zigong Salt Well can be supplied continuously for a long time, with good edible quality and preservation ability.