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Canning -- Fruits

What causes a film on canned plums?

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A colorless film may be found on home or commercially canned plums. The skin of plums naturally contains a waxy substance that may precipitate when the plums are heated. The substance is harmless.

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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