Quick Answer: How Long Will Peanut Butter Last

In the pantry, commercial peanut butters may last 6–24 months unopened, or 2–3 months once opened. Natural peanut butters may last several months unopened, or up to a month once opened. Placing peanut butter in the fridge can extend its shelf life.

Does peanut butter expire?

Peanut butter is gooey and delicious, yet it can remain at room temperature for months without spoiling. Low moisture levels and high oil content keep this butter from going bad for quite some time, but don’t go ignoring that expiration date just yet. Peanut butter can go rancid in about a year and lose its flavor.

Can you eat 3 year old peanut butter?

Past this date, if it’s unopened it’s still perfectly good. Opened, peanut butter will slowly develop off-flavors of rancid nuts over the next five or so years before it’ll taste so bad not even the most peanut butter-obsessed child will go near it. You’ll want to toss fresh peanut butter after two months.