Hand-harvested Icelandic sea salt could cost you more than 30 times the price of table salt. Housed in one of the most remote and coldest locations in the country, Saltverk salt factory produces 10 metric tons of salt each year. But there's one other thing that's unique about the way it's processed: Everything is powered entirely by geothermal energy. Unlike processed rock salt, the sea minerals remain in the crystals — but these are only a tiny percentage of the final product. The final result is very minimally processed, flaky sea salt from clear Icelandic waters.