Yes. Eggnog lasts 3–5 days in the fridge and 6 months in the freezer. After that, or sooner if stored badly, it spoils: watch for the signs below.
How to tell if eggnog is bad
Smell
A sulphur smell when cracked — unmistakable, discard.
Shell
Slimy, powdery or cracked shells.
Inside
Pink, green or iridescent whites or yolks.
Float test
Shows age only. A floating egg is old; check the smell before deciding.
Eggnog past the expiration date
Best-by and sell-by
FoodKeeper gives unopened eggnog 3–5 days in the fridge, counted from the day you buy it. "Best-by" and "sell-by" describe quality and stock rotation, not safety; only infant formula carries a federally required use-by date.
Past the date
For perishable eggnog, the storage clock matters more than the label: if it has been in the fridge longer than 3–5 days, discard it even before the printed date.
How to keep eggnog fresh longer
- Keep eggs in their carton on an inside shelf, not the door.
- Store at 40°F (4°C) or below; do not wash them before storing.
- Refrigerate hard-boiled eggs within 2 hours of cooking.