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The dilute brine of sea was largely evaporated by the sun then the concentrated slurry of salt and mud was scrapped up .The slurry was washed with clean  sea water so that the impurities settled out of the concentrated salt solution .This was poured into shallow pans lightly baked from the local marine clay which were set on fist -sized clay pillars over a peat fire for the final evaporation .The dried salt was then scrapped out and sold .