Can Soy Sauce Go Bad?

It might lose some flavor but it won't spoil, with a few caveats. An unopened bottle of soy sauce can last as long as two or three years (basically forever), and you can safely leave an opened bottle out of the refrigerator for up to one year.

How can you tell if soy sauce has gone bad?

How can you tell if opened soy sauce is bad or spoiled? The best way is to smell and look at the soy sauce: if the soy sauce develops an off odor, flavor or appearance, or if mold appears, it should be discarded.

CAN expired soy sauce make you sick?

That being said, oxidation robs fermented beverages of their premium quality, and this process starts as soon as you open the bottle. Whereas other soy products such as milk and expired tofu can make you very sick if consumed out of date, soy sauce doesn't go bad, therefore it can't make you ill.