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What causes a black color in home-canned beets?


This condition indicates spoilage. No unusual odor or gas is present. The black color may extend throughout the beet. A distinct medicinal flavor may be present. Iron must be present for the bacteria to develop this color. Iron can come from water, an iron kettle or a chipped enameled-ware utensil. Do not consume. 

 

References: KSU "The Food Spoilage Chart" Weiser: Practical Food Microbiology and Technology

 

 

 

Last update: Tuesday, May 05, 2009

 

 


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