When did humans start eating salt?

According to historical records, the earliest salt refining took place in the emperor's time. "Shiben" notes: "In the era of the Yellow Emperor, the princes had the surname of Su Sha, and began to boil milk in seawater and fry it into salt. Its colors are blue, yellow, white, black and purple. " Su Sha is a legend, but it shows that the earliest salt in China was boiled in seawater. The word "salt" is like boiled salt water in a container. Those who are born with brine, cook it with salt. Shuowen: "Born with brine, life with salt." Start cooking salt, when between Shennong (Yan Di) and Huangdi.