The shelf life of salt refers to the time when the quality and chemical characteristics of salt remain stable under appropriate storage conditions. Generally, salt is a kind of food preserved for a long time, and there is no definite shelf life limit. A correct understanding of the shelf life of salt can ensure that consumers buy fresh and high-quality products and avoid using expired or deteriorated salt. Knowing the shelf life can also help consumers plan the purchase and use time reasonably and keep the taste and nutrition of food.
Salt can be stored for several years or even longer under good storage conditions such as moisture-proof, light-proof and sealing. Although there is no problem of expired salt in theory, in practical use, it is necessary to avoid salt caking or deterioration caused by moisture or foreign body pollution; Pay attention to the storage environment and avoid exposure to high temperature or excessive humidity; Regularly check the quality and appearance of salt, and replace it in time if it is abnormal.
Precautions for storage of edible salt are as follows:
1, keep dry and avoid light.
The key to salt storage is to keep dry and avoid light. Salt should be stored in a dry environment to avoid moisture and caking. At the same time, salt should be placed in a place away from light to prevent quality changes caused by light.
2, sealed preservation and moisture-proof measures
To ensure good sealing when storing salt, it can be stored in sealed bags or cans. In addition, dehumidifiers can be placed in salt tanks or storage containers to help prevent moisture from entering.
3. Avoid odor pollution
Salt has strong hygroscopicity and odor absorption, so it should be avoided to store it with substances with strong odor to avoid the odor polluting the quality of salt.
Reference to the above content: Baidu Encyclopedia-Salt