Delvin Data Browser: 海水 as 'ocean water' (Japanese)

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The daily work begins with collecting sea water.

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They carry over 60 kilos of salt water each trip.

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Salt makers collect sea water at a rocky area nearby the salt farm, and carry it to the salt farm.

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In order to increase the concentration of salt, more sea water is poured over the box and filtered through the sand, washing the salt off.

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The resulting highly-concentrated salt water is collected and boiled for two nights, until all that remains is crystalized salt.

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An average farm is about 100 tsubo. Depending on the weather, the salt maker has to spray different amounts of sea water.

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The salt density of sea water is about 3%. When using a salt farm to concentrate the salt, it becomes about 15%.

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The sea water is then sprayed over the farm and left to dry in the heat of the sun and the wind.

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In this way, the amount of firewood used to boil the remaining water can be more effectively used.

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