Does peanut butter go bad?  I have a container of Jif in my cupboard, and I have no idea when I bought it.  It looks and smells fine, but I can’t find a datestamp anywhere on the container.

Posted by Anthony on 3 replies


01. Feb 14, 2004 at 11:16pm by drownedgod:

Stein left an open jar of peanut butter in a drawer all semester long at penn state.  It was still good when we moved out...

02. Feb 15, 2004 at 02:58pm by kaiser:

peanut butter has so many preservatives in it.  if there was a nuclear holocaust the roaches would make twinkie and peanut butter sandwiches.

03. Feb 18, 2004 at 10:28am by Patrick Copland:

Actually, it will develop a slight musty smell and will mildly irritate your stomach.  All oils (corn oil, olive oil, etc.) will turn rancid over time.  We refrigerate out peanut butter because one jar lasts many months for us.  Unopened jars will last much longer.

Once we ate fried chicken from a restaurant that didn’t change their shortening in their deep fry vats and we all got digestive problems.

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