Can I eat the salt after it has expired?

The salt has expired and can't be eaten.

Salt is usually inedible after it expires. After expiration, harmful substances are likely to appear, which will affect your health. Salt has a certain shelf life. If it exceeds the shelf life, it is likely to lead to the loss of nutrients in salt. At the same time, when salt is stored, if it is stored incorrectly, such as when it is wet or polluted, it is likely to produce a lot of harmful substances, which may cause gastrointestinal diseases after eating.

In addition, most of the salt is iodized salt. Iodine is very important to the body. Eating expired salt can easily lead to insufficient iodine intake and affect health. It is suggested that patients eat salt during the shelf life and pay attention to a low-salt diet.

The origin of salt

In ancient times, there were three natural salt springs in eastern Chongqing and western Hubei-Baoyuan Mountain Salt Spring in Wuxi (Daning Salt Field), Funiu Mountain Salt Spring in Yushan Town of Pengshui and Qingjiang Salt Spring in Changyang County, Hubei Province. Baoyuan Mountain is the earliest known salt spring in China, which has a history of 5,000 years and is still flowing today. In ancient times, before the invention of deep well brine extraction technology, the natural salt spring of the Three Gorges was the earliest source of salt supply in inland areas.

The Pakistanis control this precious resource. Wuxi Baoyuanshan Salt Spring (Daning Salt Field), a poor place with a vast territory and a sparse population, was once the earliest rich reservoir in ancient China. The whole salt field is five miles long, and people come and go on the field, and all rivers compete for flow, forming the spectacle of "ten thousand furnaces of smoke and salt". The salt in the whole Hanzhong basin, the two lakes basin, the Sichuan basin and the western Hubei region must be supplied by Daning Salt Field. Ningchang Town was a big city in ancient times.

At its peak, it became a small town with a population of 14000, where business travelers from all directions gathered. About 654.38 million people make a living from salt industry. Daning Salt Field is surrounded by mountains, and the locals say that apes are also difficult to climb. Witch salt first came out of Sichuan, and the industrious Ba people crossed the back of Qinling Mountain along the narrow and steep mountain road. Ba people opened up four thousand miles of Yanshan Road, and witch salt was transported to the mountain road in western Hubei and southern Shaanxi. There are already eight salt roads in the mountains, and the locals call these roads "Qin Chu Avenue".