Ordinary table salt has no shelf life. Only salt with added trace elements has a shelf life. Low-sodium table salt has a shelf life of 3 years; iron table salt has a shelf life of 1 year; selenium salt, calcium salt, zinc salt has a shelf life of 8 years; refined iodized salt has a shelf life of 5 years; iodized table salt has a shelf life of 18 months.
Regular table salt has no shelf life. Only salt with added trace elements has a shelf life. Low-sodium table salt has a shelf life of 3 years; iron table salt has a shelf life of 1 year; selenium, calcium and zinc salts have a shelf life of 8 years; refined iodized salt has a shelf life of 5 years; and iodized table salt has a shelf life of 18 months.