Chocolate syrup is an adaptable dessert complement. Use a drizzle to transform a scoop of ice cream or to create a New York egg cream.
Hershey's says chocolate syrup expires. Once opened, chocolate syrup lasts about a year, so use it quickly.
You should also know when to refrigerate chocolate syrup. There are several general rules for storing syrup.
Depending on whether or not the bottle has been opened, chocolate syrup can be kept at room temperature or refrigerated.
Unopened chocolate syrup can last two years in a pantry, per CNET. Once the syrup is opened, keep it cold at room temperature.
Once your syrup is in the fridge, keep an eye on it. Opened chocolate sauce can degrade like opened maple syrup.
Mold, which grows in maple syrup after the syrup has been exposed to air, is a telltale sign that the syrup has gone bad.
The same holds true for chocolate syrup; if it has started to grow mold or if it smells, tastes, or looks off, you can safely throw it out.
A good rule of thumb is to err on the side of caution when deciding whether or not your syrup is safe to consume. Before using it in a sweet dish, make sure the syrup is safe to eat.