Mustard

The answer

Opened mustard lasts 1 year in the fridge.

Caution Refrigerate after opening for best quality and the 1-year window.

How long it keeps

Fridge (40°F) 1 year safe window
Freezer (0°F) Do not freeze best quality
Room temp 2 hours max then discard
Discard Discard if moldy, fermented-smelling, or fizzing.

By state & packaging

State Fridge Freezer
Opened, refrigerated 1 year Do not freeze
Unopened, pantry

Signs it has gone bad

Mold at the cap or surface
Fermented or off smell
Separation with sour odor

FAQ

How long does opened mustard last?

About 1 year refrigerated per FoodKeeper guidance. Follow the package date if it is shorter.