Peanut Butter

By John Gregerson

Jun 09, 2009

Peanut Butter How is it that a food as creamy as peanut butter can sit for months and months on pantry shelves without going bad? It's because oil--in this case peanut oil--and water don't mix. Peanut oil won't accommodate the water required to support spoilage bacteria. No water, no spoilage, which is why peanut butter can remain wholesome for up to a year. 

Peanut Butter Shelf Life
PantryRefrigerator
Peanut Butter, opened2-3 months6 months
Peanut Butter, unopened6-9 months- -
Handling Tips: 
Refrigeration not needed. Keeps longer if refrigerated. Serve at room temperature.
Source(s): 
Boyer, Renee, and Julie McKinney. "Food Storage Guidelines for Consumers." Virginia Cooperative Extension (2009): n. pag. Web. 7 Dec 2009.
"Cupboard Storage Chart." K-State Research and Extension n. pag. Web. 23 Dec 2009. <http://www.ksre.ksu.edu/humannutrition/hrap/storage/cupstor.htm>.
AlgerWiki “Expiration Dates”
 
 

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