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Additives and Preservatives

What is acetic acid?

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Acetic acid is the principle component of vinegar. It is used as a preservative, acidulant, and flavoring agent in many food products. USDA recommends using vinegar that is at least 5% acidity for making pickled products or for acidifying tomatoes.

PREPARED BY: Angela M. Fraser, Ph.D., Associate Professor/Food Safety Specialist, and Carolyn J. Lackey, Ph.D., R.D., L.D.N., Professor/Food and Nutrition Specialist, North Carolina State University. (August 2004)

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