Fish sauce anchovies among other ingredients. Fish sauce Fish sauce is a liquid condiment made from fish that have been coated in salt and fermented for up to two years. It is used as a staple seasoning in the cuisines of Southeast and East Asia, particularly Indonesian, Burmese, Cambodian, Filipino, Thai, Lao, and Vietnamese. Following widespread recognition of its ability to impart a savory umami flavor to dishes, it has been embraced globally by chefs and home cooks. The "umami" flavor in fish sauce is due to its glutamate content. Soy sauce is regarded by some in the West as a vegetarian
Fish sauce "kecap" in Indonesia might be the precursor of ketchup. By 50–100 BC, demand for fish pastes in China had fallen drastically, with fermented bean products having become a major trade commodity. Fish sauce, however, developed massive popularity in Southeast Asia. Food scholars traditionally divide East Asia into two distinct condiment regions, separated by a bean-fish divide: Southeast Asia, mainly using fermented fish (Vietnam, Thailand, Cambodia) and Northeast Asia, using mainly fermented beans (China, Korea, Japan). Fish sauce re-entered China in the 17th and 18th centuries, brought from Vietnam and Cambodia by Chinese traders up the coast of the southern provinces