Cottage Cheese
The answer
Opened cottage cheese lasts about 1 week in the fridge. It does not freeze well.
How long it keeps
Fridge (40°F) ~1 week safe window
Freezer (0°F) Does not freeze well best quality
Room temp 2 hours max then discard
Discard Discard if it smells sour, looks yellow, or shows any mold.
By state & packaging
State Fridge Freezer
Opened ~1 week Does not freeze well
Unopened Printed date + a few days Does not freeze well
Signs it has gone bad
✕ Sour smell
✕ Yellow tint
✕ Mold spots
FAQ
Can I eat cottage cheese a week after opening?
One week is the limit. If it smells normal and shows no mold at day 7, finish it that day; otherwise discard it.