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Conventional Peanut Butter

Unopened: 2 years

Opened: 3 months in the pantry, or 3 to 4 months in the refrigerator

Conventional peanut butter has a longer shelf life than unprocessed, natural peanut butter. If you open a jar of peanut butter that has been stored in the pantry, refrigeration is recommended to retain flavor and prevent oil separation. If it develops an off color, odor or appearance it should be discarded.

(Credit: Tom Grill/Iconica/Getty Images)
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