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| I vaguely recall you can buy two types of Jurasel at Migros or Coop, and they have a different colour, the packages I mean. Perhaps one is blue and the other blue with green...Anyway, find the Jurasel one without, it does exist  . | |
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Jura Sel with the blue stripe that has "Speisesalz" is the one that only has salt and an anticlumping agent. No iodine or fluoride.
This is the type of salt that I use for nasal irrigation. Iodine and fluoride do not help with nasal irrigation.