Data show that sea salt is the main edible salt in the southeast coast, Tianjin and Hainan. Luchang Yantian, one of the four major salt fields in China, is the largest salt field in China, including Hangu, Tanggu, Nanbao and Daqing River, with a total area of more than 2.3 million mu, with an annual output of more than 3 million tons of sea salt, accounting for one quarter of the total sea salt output in China.
Salt is mainly divided into refined salt, rock salt, lake salt and sea salt. According to relevant data, people in China mainly use refined salt and rock salt at present. Refined salt is pure salt obtained by refining and processing, in which the inorganic content is low. Rock salt is mined from underground salt mines and naturally contains many minerals.
The quality of well mineral salt is higher than that of lake salt and sea salt, because the raw materials of well mineral salt come from natural brine and rock salt deposits below thousand meters deep well, which are hardly polluted and have few impurities. The proportion of people in China who eat sea salt is very small. At present, the proportion of salt products in China is well salt 87%, sea salt 10% and lake salt 3%.
The difference between well salt and sea salt
Nutrition: The main component of salt is sodium, so there is no difference between well salt and sea salt. Quality: Well salt is better than sea salt. First of all, mine salt is purer and better in quality than sea salt.
Because the raw materials of well salt are all from natural brine and rock salt deposits in Jurassic geological age below a thousand meters deep well, they are rich in various natural mineral elements and have few impurities.
Secondly, the refining principle of well mineral salt is refined by fully sealed vacuum process, which hardly destroys its original substance and is pure natural. Well salt is superior to sea salt in color and shape.
Finally, with the development of modern industry, the pollution of harmful chemicals to sea salt raw material-seawater is becoming more and more serious, but the raw material of well salt is not affected.