What is the Key to the Longevity of Soy Sauce, and How can It be Preserved?
Because of its high acidity, soy sauce is an uninviting environment for bacteria. Once it has been opened, soy sauce can be stored in the pantry for up to six months after it has been exposed to air. This is in contrast to the majority of other types of sauces, which need to be refrigerated.
You can keep soy sauce in the refrigerator for up to a year, and it won’t lose any of its flavor if you store it in a pantry. To keep the flavor of the soy sauce intact, store it in a cool, dark place away from direct sunlight and high temperatures.