No difference. The main component of salt is sodium. From a nutritional perspective, there is no difference between mineral salt and sea salt. But if you use hot compress, sea salt has more minerals than mineral salt. Sea salt is a better choice.

Mineral salt, also called rock salt, is mined from the ground. Its composition is also relatively complex, and its composition varies depending on the place of origin. Sea salt, as the name suggests, is salt obtained from sea water. It is also by far the most produced salt. The refined iodized salt we eat daily is sea salt.

Generally, for hot compresses, it is better to use sea salt. Sea salt is salt that is directly precipitated from sea water without further processing. Stir-fry the sea salt and take it on the stomach to relieve intestinal spasm or dysmenorrhea. Salt has a large specific heat, absorbs more heat when heated, and dissipates heat slowly when used for hot compresses. The long-lasting temperature is better than using a towel or hot water bottle for hot compresses.