Once opened, Lemon juice (beverages) keeps about 2 months in the fridge. Unopened, it keeps about 12–18 months.
| Situation | Keeps for |
|---|---|
| Unopened · pantry | 12–18 months |
| Opened · fridge | 2 months |
About 2 months refrigerated at 40°F (4°C) or below, according to USDA FoodKeeper v128. Refrigerate it once it's open.
Yes — keep Lemon juice (beverages) at 40°F (4°C) or below once it's open. Cool, dry pantry unopened; refrigerate at 40°F (4°C) or below after opening.
Look for: Sour or off smell; Cloudiness, sediment, or curdling; Fizzing in a still drink, or a swollen carton or can; A bitter or 'off' first sip. Never taste something to test it — when in doubt, throw it out.