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How long can peanut butter last?

Updated: 10/6/2023
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12y ago

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All peanut butter is labelled with an expiration date on the package. It is best to throw away any food by the time the expiration date is up, or shortly thereafter for foods with a long shelf life such as peanut butter. The product may be good for some time after opening if opened near the date of expiration. It is best to use your judgement, and if in doubt, throw it out.

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16y ago
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10y ago

Peanut butter, once opened, can be kept for a few weeks. Check that you don't see any mold or growth occurring, which can happen quicker if there is bacteria present. Otherwise, peanut butter is generally very shelf stable, especially due to it's low sugar content (only about 3g per serving).

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12y ago

Check for an expiration date. Once opened some can last for 2-3 months in a refrigerator before getting old. But if you like peanut butter a lot, then it might not last for even an hour.

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15y ago

Peanut butter can be stored in the refrigerator or just on a shelf for months and still be good. Make sure no insects can get into the stuff.

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13y ago

Well, it depends if you've opened it or not.

Unopened is about 18 months

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13y ago

You should take a look at the expire date and see.

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12y ago

Once opened, it should be refrigerated. Then it can last 2-3 months.

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13y ago

like, a week? JUST EAT THE THING! lol :)

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13y ago

look at the expiration date

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