Half-and-Half
The answer
Opened half-and-half lasts 7–10 days in the fridge. Follow the package date if it is shorter.
Caution Store on a fridge shelf, not the door.
How long it keeps
Fridge (40°F) 7–10 days (opened) safe window
Freezer (0°F) 3 months (quality varies) best quality
Room temp 2 hours max then discard
Discard Discard if sour-smelling, curdled, or left out more than 2 hours.
By state & packaging
State Fridge Freezer
Opened 7–10 days 3 months
Unopened Printed date + a few days 3 months
Signs it has gone bad
✕ Sour smell
✕ Curdled lumps
✕ Yellowish separation
FAQ
Is half-and-half still good after 2 weeks opened?
No. FoodKeeper lists opened cream products at about 7–10 days. Discard it.