The reason this happens is that salt is hygroscopic. Hygroscopic means that salt absorbs water vapor from the surrounding air. Eventually, the salt attracts enough water vapor that the gas changes into liquid, and the salt partially dissolves and starts to clump together. To combat this tendency, manufacturers put additives in salt that keep it from liquefying.
Itchy Red Bumps on Chest and Back bumps on the back. Bumps are common on any part of the body. They could appear as a result of an allergic reaction, a disease or skin disorder. These may be caused by bacterial, viral or fungal infections. Some of these bumps may be localized on a certain part of the body or spread all over. Itchy red bumps on chest and back are common.
Lump on Back of Neck. A bump or lump can be classified as any type of enlargement or abnormal bulge under or above the skin. Lumps on the neck are quite common. A lump found on the back of the neck can be formed due to a muscle injury, inflamed tonsils or swelling of the lymph nodes. This can cause a great deal of pain and stiffness in the neck.