Expiration & Storage Tips
When does blackberry jam expire?
Unopened blackberry jam can last for about 1-2 years if stored properly in a cool, dry place, away from direct sunlight, such as a pantry. Once it's opened, it should be stored in a refrigerated environment and is usually good for 6 months to 1 year. As for homemade blackberry jam, if it's vacuum-sealed properly, it can last up to 2 years unopened. But once opened, it should be consumed within 1-2 weeks. Freezing blackberry jam isn't a common practice, but if you decide to do so, ensure it is stored in an airtight, freezer-safe container. It can extend the shelf life to about a year, but the texture might be affected slightly upon thawing.
How do you tell if blackberry jam is bad?
Signs that your blackberry jam may have gone bad include a change in color or texture, the presence of mold, a fermented or off-putting odor, or an unusual taste. If the seal on the jar is broken or the jam is not stored properly, it is more likely to spoil. It is always better to err on the side of caution and discard it if you're unsure.
Tips for storing blackberry jam to extend shelf life
• Always store unopened jars of blackberry jam in a cool, dry place away from direct sunlight.
• Once opened, ensure to refrigerate the jam. Always use a clean spoon when scooping out the jam to prevent the introduction of bacteria.
• Homemade jams should be made using sterilized jars and lids. Once opened, they should be used quickly due to the lack of preservatives.
• While freezing is not usually recommended, if you do choose to freeze your jam, ensure it is in a freezer-safe, airtight container. To thaw, simply move it into the fridge for a day before use.
• Always look for signs of spoilage before using- such as changes in smell, color, and texture, and the presence of mold.