Soy sauce including soy sauce, soy sauce, soy sauce, these three sauces are fermented beans and become, the difference is that the addition of other ingredients have a difference, in general, soy sauce flavor is sweeter (can be used for cold dishes dishes), darker soy sauce taste heavier (can be used for stir-fry, fried rice), soy sauce is more fresh and fragrant (used as dipping sauce has a good effect).