Calcium chloride is somewhat similar structurally to table salt but contains calcium instead of sodium. If you live in a snow-prone area, you most likely see the substance every winter in the form of the salt sprinkled on the streets and sidewalks to prevent snow and ice buildup. This use stems from Calcium chloride‘s hygroscopic nature, meaning it absorbs water and then dissolves into it. It has an extremely salty taste. In food, it generally acts as a preservative that helps soft foods maintain their shape but also is used in the preparation of a few specific food items