- How long does unopened soy milk last? The precise answer to that question depends to a large extent on storage conditions - to maximize the shelf life of unopened soy milk, keep it refrigerated at all times.
How long does unopened soy milk last in the fridge? Unopened soy milk will generally stay at best quality for about one week after the date on the package, assuming it has been continuously refrigerated.
To maximize the shelf of unopened soy milk, do not store it on the fridge door, as the temperature is too warm - the unopened soy milk will last longer when stored in the main body of the refrigerator, in its original package.
How to tell if soy milk is bad? The best way is to smell and look at the soy milk: if the soy milk develops an off odor, flavor or appearance it should be discarded.
Sources: For details about data sources used for food storage information, please click here