Some people think that the salt in the sea water is the salt in the rock and soil that flows into the sea through streams and rivers. Sea salt is one of the edible salts often used in China in previous dynasties. We only need to evaporate the sea water to extract sea salt. Salt contains a variety of nutrients needed by the human body, but it should not be eaten in excess.
There is a saying that the salt in sea water is the salt in rocks and soil that flows into the ocean through streams and rivers. People who hold this view believe that the salt in the ocean is very little at first, even close to fresh water.
Sea salt is one of the edible salts often used in China in previous dynasties. The extraction of sea salt is very simple. We only need to inject sea water into the salt field, wait for it to evaporate to saturation, and then inject it into the crystallization pool to continue to evaporate to crystallization.
Finally, we can collect the evaporated salt with the help of tools, and we can continue to process the salt so as to make it into refined salt. Salt contains a variety of nutrients needed by the human body, but it should not be eaten in excess.