What is the shelf life of canning salt?

Canning salt, also known as preserving salt or pickling salt, has an indefinite shelf life. Unlike regular table salt, canning salt does not contain any additives, such as iodine or anti-caking agents, which can affect its preservation. As long as it is stored properly in an airtight container in a cool, dry place, canning salt will retain its quality and remain safe for use.