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Question
Can olive oil spoil over time when the can is unsealed but
covered with a cap?
Hi Robert,
Yes, all oils, including olive oil, can eventually go rancid.
A great website that explains the storage and rancidity of olive oil is the Olive Oil Source: http://www.oliveoilsource.com/olive_oil_storage.htm
I keep my oils in a dark, cool place and find that they last a long time. Some oils that I don't use very often I keep in the refrigerator to prolong their shelf life.
If you should have additional questions, please let me know.
Carol C. Schlitt
Extension Educator, Nutrition and Wellness
University of Illinois Extension
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Answers by Expert:
Carol Schlitt
Expertise
I can answer questions on home food safety, sanitation, home food preservation and commercial food safety (HACCP).
Experience
I am a former Extension educator, nutrition, wellness and food safety, having retired August 1, 2010. I am a certified HACCP manager, a food safety instructor for the Illinois Department of Public Health and a 3rd party food safety and OSHA auditor of restaurants.
Organizations
International Association for Food Protection, American Association of Family and Consumer Sciences (Certified CFCS), National Extension Association of Family and Consumer Sciences, St. Louis Culinary Society.
Education/Credentials
BS - University of Illinois
MS - Southern Illinois University at Edwardsville
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