When did salt become available?

It is said that the origin of salt in my country can be traced back to the Yan and Huang Dynasties, and the method of making salt from seawater was invented by Susha.

Therefore, the Susha family was also revered as the "Salt Sect" by people, and some people built temples specifically to worship him.

The method of extracting salt from seawater has been spread to this day. Nowadays, people generally build salt fields to extract salt from seawater, then inject seawater into the salt fields for evaporation and crystallization, and then put them into salt fields. The crystals produced by seawater are collected and processed.