Expiration & Storage Tips
When does grape juice expire?
Unopened, commercial grape juice can stay good for 12-18 months when stored properly in a cool, dry place. Although the taste might start to change, it can still be safe to drink past the expiry date until it shows signs of spoilage. Once opened, grape juice typically lasts 7-10 days in the fridge before it starts to ferment. When it comes to homemade grape juice, it’s always best to stay on the safe side and consume it within a week. If you decide to freeze your grape juice, it can last indefinitely though for best flavor, consume within 8-12 months of freezing.
How do you tell if grape juice is bad?
Grape juice that has rotted gives off a quite pungent smell, making it fairly easy to identify. If your grape juice begins to smell unusually strong, somewhat like vinegar or wine, this means it has begun to ferment and should not be consumed. In addition, if you see mold, discoloration, or notice a change in texture (it becomes slimy or unusually thick), this is a clear sign the juice has spoiled.
Tips for storing grape juice to extend shelf life
• Always store unopened grape juice in a cool, dry place like a pantry.
• Once you've opened the bottle, make sure to refrigerate it. The cold temperature of your fridge will help to slow down the fermentation process.
• To extend the shelf life of grape juice, consider freezing it. You can use an ice cube tray to make small, individual servings that you can easily add to your drinks or recipes.
• When storing grape juice in the fridge, always reseal the container tightly to limit its exposure to air, this helps prevent the growth of mold and unhealthy bacteria.
• If you produce homemade grape juice, consider bottling and pasteurizing it to extend shelf life.