Rock Salt Sun-dried Sea Salt

Sea salt, the most primitive method of production is the "frying" and "cooking" method, using a pan for frying, cooking with a pot, known as "boiling sea salt". After more than ten centuries of practice and improvement, from direct seawater decoction to boiling, to pouring brine decoction. The decoction method of sea salt is not only low yield, but also poor quality.

Who first invented and used seawater beach tanning salt? It is the Wudi Jieshi Mountain near the salt people. According to the Ming Dynasty scholar Song Yingxing authored the "Tian Gong Kai Wu . For salty fifth" records: "seafont has led seawater directly into the pool sunshine into the condensation, sweeping food without adding manpower. It is the same as desalination. But into the salt time and date, and do not borrow the south wind is very different."

This account of the "Hai Feng" refers to the Ming Dynasty in Shandong Province, "Wudi County". The name "Wudi" was first mentioned in the Spring and Autumn Period. Higong four years", the beginning of the Ming Dynasty, to avoid the taboo of the Ming Emperor "Zhu Di", renamed "Hai Feng", and in 1914 to restore the name of Wudi. The name "Xieyan" refers to the salt produced in Xiechi, Xiezhou, Shanxi Province. The quality of Xieyan salt was the highest in China at that time, and it belonged to the category of "Tribute Salt". The quality of Wudi's sun-dried sea salt is the same as that of Xiezhou's tribute salt, and the level of Wudi's salt production can be seen.

Shandong long Sha's cooking sea salt, the originator of the Chinese salt production. In the early Zhou Dynasty, Jiang Taigong in Qi "north to Wudi", according to the "tube": "the beginning of the spring, the people of the North Sea is boiled sea salt". The Records of the Grand Historian: "Taigong to the country ...... through the industry and commerce of the industry, fish and salt, and the people return to Qi, Qi as a large country." From this Wudi salt flourishing, the Western Han Dynasty Bohai County salt officials. Wei Jin salt people in the Jieshi mountain to build salt god temple (also known as "salt god shrine"), so Jieshi mountain and commonly known as "salt mountain". The Book of Wei. Geomorphology" from this "salt mountain shrine" records. Yanshan County Records" P108: "Sui Kaihuang 18 years (598), to the southeast of the county near the sea there is a mountain called Yanshan, the name of the mountain to change the Gao Cheng County for Yanshan County. Yanshan (present-day Wudi County, Shandong Province, within the territory of the mountain), anciently known as Jieshi Mountain, the Spring and Autumn period was renamed Wudi Mountain. Under the mountain, there is Yue Ming Gu producing salt, the mountainside has a salt god temple, Wei and Jin Dynasty called Salt Mountain."

Yuan Taizong two years to Yuan Shizu twenty-three years (1320-1378) in Jieshi Mountain north of the realm of the Lijin River along the construction of Hai Feng, Hai Run, Hai Ying three salt farms. At the beginning of the Ming Dynasty, Hai Run, Hai Ying have frying and sun, Ming Shizong Jiajing first year (1522 years) Hai Feng field is the first easy to fry for the sun, has been used for more than 2,000 years of the old traditional salt production process, was invented by the Wudi people instead of the new process, so that the salt industry took a big step forward, the contribution of the Wudi people of the salt production is indispensable.