Expiration & Storage Tips
When does plum jam expire?
Unopened store-bought plum jam can last for about 1 to 2 years if stored properly. After opening, it can last for about 6 months to 1 year in the refrigerator. If you froze your plum jam, it can last indefinitely, but for the best quality, it's best to use it within a year.
How do you tell if plum jam is bad?
Check the jam for changes in color or smell. If the jam has become darker or the smell is off, it's time to toss it out. Also, if you see mold growth, it's a clear sign that the jam has gone bad. Even if the mold is only on top, it's better to be safe and dispose of the entire jar.
Tips for storing plum jam to extend shelf life
• Always store unopened jars in a cool, dark place like a pantry.
• Once opened, ensure to store plum jam in the refrigerator.
• Always use a clean spoon when digging into the jar to avoid introducing bacteria.
• If you plan to freeze the jam, leave some space at the top of the jar for expansion.
• Thaw frozen jam in the fridge overnight before use.