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Peanut butter has a natural preservative in it. It does not need to be refrigerated. It will keep for months out of the refrigerator. How about "natural" peanut butter? I read that there is a cancer-causing mold in peanut butter, and if left un-refrigerated, can grow?

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14y ago
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Q: How long can you keep peanut butter if unrefrigerated?
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