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Do You Have to Refrigerate Peanut Butter?

Question: Once in a while we see that someone has put peanut butter in the refrigerator at the Kitchen which makes it impossible to spread. Is that necessary?

Answer:  No—it’s not necessary to refrigerate an opened jar of commercially manufactured peanut butter, says the National Peanut Board. An opened jar of processed peanut butter will usually keep well for about 3 months when stored at normal room temperature.  And the major benefit is that it allows the peanut butter to spread more easily. That said, if you’re not able to finish off the entire jar of peanut butter within a few months – or if you store it where it get extremely hot and humid – storing the opened jar in the refrigerator can help keep the peanut butter at optimum freshness longer. Once refrigerated, it will generally remain at good quality for an additional 3 to 4 months.