Yes, lemon juice does expire, though the expiration timeline depends on whether it's commercially bottled or freshly squeezed.
Commercially Bottled Lemon Juice
- Unopened: Bottled lemon juice can often last for a couple of months past the "best by" date printed on the container.
- Opened: Once opened, bottled lemon juice should be refrigerated and typically lasts for 6-12 months. It's best to use it within 1-2 months if opened after its "best by" date.
Freshly Squeezed Lemon Juice
Fresh lemon juice is far more perishable than its bottled counterpart.
- Refrigerated: Freshly squeezed lemon juice will typically last for 2-3 days when stored in an airtight container in the refrigerator.
- Frozen: For longer storage, you can freeze fresh lemon juice in ice cube trays. Once frozen, transfer the cubes to a freezer bag. Frozen lemon juice can last for 3-4 months. However, freezing might slightly alter the texture.
Signs of Spoiled Lemon Juice
Here's what to look for to determine if lemon juice has gone bad:
- Color Change: A significant darkening or discoloration.
- Odor: A sour, fermented, or otherwise "off" smell.
- Appearance: The presence of mold or unusual sediment.
- Taste: An unexpectedly bitter or unpleasant taste.
If you observe any of these signs, it's best to discard the lemon juice.
