Peanut butter has a real shelf life of 2 to 3 years when it is stored well, kept cool and sealed. The label guidance only suggests 6 to 9 mo past the best-by date.
How do I store peanut butter long term?
Keep peanut butter cool and sealed, which gives it a real shelf life of 2 to 3 years, well beyond the 6 to 9 mo past best-by the label suggests.
How do I tell if peanut butter has gone bad?
Watch for rancidity and separation. Those are the two signs to check for on peanut butter that has been stored a long time, even inside its real shelf life of 2 to 3 years.
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