Table salt does not expire.

Reason: The main component of table salt is sodium chloride, which is chemically very stable. Like sugar, table salt is often used to preserve food and is a natural preservative. However, we often eat iodized salt, if you do not avoid light and high temperature, put too long iodine content will be reduced, the salt will be caked, salt quality does not change does not affect consumption. So the state of common salt has no shelf life limit.

Purchased iodized salt should be properly preserved:

(1) The vessel for iodized salt should be a brown light-blocking bottle or ceramic jar with a lid.

(2) Iodized salt should be kept in a cool, dry place away from direct sunlight and moisture absorption, and stored away from the stovetop to avoid the effects of heat.

(3) Iodized salt should not be stored for too long, and should be purchased as it is used and properly stocked.

Expanded

The edible salt is exempted from labeling the shelf life, if the salt added calcium, iron, zinc and selenium and other trace elements of the salt, it needs to be labeled with a shelf life. On the salt itself is no shelf life, as long as the moisture, light storage on the line.

The fact that salt is not labeled with a shelf life does not mean that it can be stored for decades. It is recommended that when buying salt, you should pay more attention to the factory date printed on the bag and eat it as soon as possible. Experts believe that although table salt can be stored for a long time, but the preservation method is very important, must be placed in a dry and cool place of storage, avoid exposure to the sun.

Iodized salt is affected by heat, light and wind, easy to oxidize and decompose and make iodine volatile, they should be stored in a colored sealed container with a lid. Salt absorbs moisture easily and must be kept in a dry place, otherwise the salt will affect consumption if it is damp and may be contaminated. In addition, the daily salt intake of adults, up to about 6 grams.

People's Daily News - Does edible salt have a shelf life