Eggnog

The answer

Opened commercial eggnog lasts 3–5 days in the fridge. Keep it cold — it contains eggs and dairy.

Caution Refrigerate promptly after opening. Follow the package date if it is shorter.

How long it keeps

Fridge (40°F) 3–5 days (opened) safe window
Freezer (0°F) Does not freeze well best quality
Room temp 2 hours max then discard
Discard Discard if held above 40°F for more than 2 hours, or above 90°F for more than 1 hour.

By state & packaging

State Fridge Freezer
Commercial, opened 3–5 days Does not freeze well
Homemade 2–4 days Does not freeze well
Unopened commercial Printed date Does not freeze well

Signs it has gone bad

Sour or curdled texture
Off or boozy smell
Separation with foul odor

FAQ

Is eggnog still good after a week?

No. Opened commercial eggnog lasts 3–5 days; homemade 2–4 days. Discard it.