2. Steamed fish soy sauce is a kind of soy sauce, which is usually used to steam fish. It is a condiment with Asian characteristics used in cooking. Soy sauce is generally made of soybean as the main raw material, and it is fermented by adding water and salt to make koji.

3. Liquid brewed by various microorganisms under the action of various enzymes secreted during reproduction. Different countries and regions make soy sauce with different raw materials, different ingredients and different flavors, especially Vietnamese fish sauce.