Saltiness is a type of TASTE that is often associated with food. It is characterized by a sharp, salty flavor that is usually caused by the presence of sodium chloride in the food. Saltiness is one of the five basic tastes, along with sweet, sour, bitter, and umami. It is an important component of many dishes, as it helps to bring out the other flavors in the food. Saltiness can also be used to enhance the flavor of certain foods, such as popcorn or chips.