- How long does chocolate syrup last once opened? The precise answer depends to a large extent on storage conditions - to maximize the shelf life of opened chocolate syrup, keep it refrigerated and tightly closed.
How long does opened chocolate syrup last in the refrigerator? Chocolate syrup that has been continuously refrigerated will generally stay at best quality for about 12 to 18 months.
Is opened chocolate syrup safe to use after the expiration date on the package? Yes, provided it has been stored properly, the package is undamaged, and there are no signs of spoilage (see below) - commercially packaged chocolate syrup will typically carry a “Best By," "Best if Used By," Best Before, or "Best When Used By" date but this is not a safety date, it is the manufacturer's estimate of how long the chocolate syrup will remain at peak quality.
The storage time shown for opened chocolate syrup is for best quality only - after that, the syrup's texture, color or flavor may change, but in most cases, it will still be safe to consume if it has been kept continuously refrigerated, the package is undamaged, and there are no signs of spoilage (see below).
How can you tell if opened chocolate syrup is bad or spoiled? The best way is to smell and look at the chocolate syrup: if the syrup develops an off odor, flavor or appearance, or if mold appears, it should be discarded.
Sources: For details about data sources used for food storage information, please click here