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Food Safety Issues/Black spots on Kidney beans


Kidney Beans
Kidney Beans  
This is my first year growing Kidney beans.  I am harvesting them now, and finding many with black spots on them.  On some it it is on the side of the bean- on others it is along the top "seam".  I cannot tell what it is.  I am unsure as to whether this is safe to keep.  When I harvested my pinto beans, some of them had kind of reddish-orange spots, which I kept. We recently had two weeks of solid rain, and I was wondering if this could have affected them.  Thanks for your help.

Hi Karen,

This question is really not in my area of expertise and should be directed to a plant specialist.  I suggest you contact your local Cooperative Extension Service Office through the University of Missouri and ask to speak to a fruit and vegetable horticultural educator who should be able to answer your question.

To find your local Extension office, please see:

Good luck.


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Carol Schlitt


I can answer questions on home food safety, sanitation and home food preservation.


I am a former Extension educator, nutrition, wellness and food safety, having retired August 1, 2010. I am a food safety instructor for the Illinois Department of Public Health, a ServSafe Instructor/Proctor and have my own company, Safe & Savory Solutions, Inc -

National Extension Association of Family and Consumer Sciences (Past President and current Historian), St. Louis Culinary Society.

BS - University of Illinois MS - Southern Illinois University at Edwardsville

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