On land, it has to draw water from various sources that there is salt in salt accumulated underground water, boil up the remainder evaporated salt crystals are. How long do I have to do this by, there is evidence that there is a salt tax in modern world. South of Chiang Mai when the current RS. 1,990 manop already boiling salt water, it is also known, such as the ban Bo PHO district, Phitsanulok Thailand at Amphoe Bo kluea of Nan province, etc, but these are the salt does not contain iodine, which is different from sea salt. Sea salt farming along the coastal plain. Have inherited the wisdom of the villagers from the past. The production of heat from the Sun will cause the sea to pump up the prison in NA. Salt evaporating brine to occur and cause the crystals to fall on the floor, na-salt. This sea salt or sea salt Rich in minerals that give many different types of human beings.
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