Salt has a shelf life. Salt containing iron nutrients, shelf life is mostly 1 year, ordinary iodized salt shelf life of about 2 years, refined iodized salt shelf life of 5 years, low sodium salt 3 years shelf life, and selenium salt, calcium salt, zinc salt shelf life of 8 years.

Salt also has a certain shelf life, usually about one to two years, but some processed salt, such as iodized salt, potassium salt, the shelf life will be 5 to 8 years. Salt, from the classification of well salt, sea salt, pool salt, rock salt, etc., from the composition includes iron, calcium, zinc, potassium, sodium, iodine and other nutrients, people use table salt is a kind of salt, refers to sodium-rich salts, that is, sodium chloride.

The shelf life of table salt containing calcium, zinc, selenium and iron varies. Pure salt itself has no shelf life, but it is generally recommended that it be consumed within six months. Salt has the privilege of being exempted from having a shelf life by the state, but that doesn't mean it doesn't expire, just that it has a longer shelf life. Salt that is not labeled with a shelf life is best consumed within 1 year in order to ensure taste.

Selection of salt

In the purchase of salt, we must carefully observe its packaging, in general, qualified salt, its packaging are anti-counterfeiting mark, we should first look at the bag to see if there is a anti-counterfeiting mark, if there is a regular manufacturer of edible salt.

In addition to looking at the security label, we also need to look at the date of production. Generally speaking, the date of production is next to the anti-counterfeiting mark, so as long as you find the anti-counterfeiting mark is very easy to find the date of production, and vice versa. In addition to the date of production, we should also look at the standard number of the product.

Reference: Baidu Encyclopedia - Edible Salt