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How long does opened peanut butter last at room temperature? Does it last longer if you store it in the refrigerator instead of in the pantry?
I don't know specifically, but with any oil product, it will go rancid after a time. I've had it around for a couple of months, opened, but it is usually consumed long before that. :D We keep it in the refrigerator to keep it from the dogs, and if we get the non-homogenized variety, it will keep it from seperating.

G
 

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From what I've been able to find, the general consensus is 6-9 mos. unopened, 2-3 mos. opened, slightly longer in the fridge.

Tim
 

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performing monkey
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I've kept the bulk cans of generic peanut butter for almost two years in the past & it was still good... well, edible :rolleyes:

It's only available by mail, but a package of four 6 1/2-ounce jars of powdered peanut butter (each is equivalent to an 18-ounce jar of prepared peanut butter) costs $16.

Bell Plantation, Inc. - PB2 Powdered Peanut Butter - Home

phone: 229-387-7238 (Georgia)
 
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