How long does peanut butter last?
After opening a jar, peanut butter can be stored in the pantry for a few months, and it is best to store it in the refrigerator to extend shelf-life and prevent oil separation.
| Form | Where | Official window |
|---|---|---|
| opened | pantry | a few months |
| opened | refrigerator | to extend shelf-life |
The official discard rule
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These are the official windows; when in doubt, follow the source linked below.
Grounded in: extension.colostate.edu. Every window above appears
verbatim in the linked sources.
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