Yes, caramel syrup can go bad, but the shelf life depends on whether it's commercially produced or homemade, and how it's stored.
Commercially Produced Caramel Syrup
- Unopened: Commercially produced caramel syrup often contains preservatives that extend its shelf life. If stored in a cool, dry place, unopened caramel syrup can often last several months past its "best by" date.
- Opened: Once opened, it's best to refrigerate commercially produced caramel syrup. Pay attention to any changes in appearance, smell, or taste. If you notice mold, an off odor, or a strange taste, discard it immediately.
Homemade Caramel Syrup
- Shorter Shelf Life: Homemade caramel syrup, lacking preservatives, has a significantly shorter shelf life than store-bought varieties.
- Refrigeration is Key: Always refrigerate homemade caramel syrup.
- Signs of Spoilage: Watch for signs of mold, changes in color or consistency, or an off odor. Discard if any of these are present. Generally, homemade caramel syrup should be used within 1-2 weeks.
Factors Affecting Shelf Life
- Storage Conditions: Proper storage is crucial. Keep caramel syrup in a cool, dark, and dry place, whether opened or unopened.
- Ingredients: Homemade caramel syrup made with fresh ingredients may spoil faster.
- Contamination: Always use clean utensils when dispensing caramel syrup to avoid introducing bacteria or mold.
Summary
Caramel syrup does go bad, but commercially produced syrup generally lasts longer than homemade. Proper storage and careful observation are key to ensuring you use it safely. When in doubt, throw it out!