How Safe Are Farmer’s Markets?

We all love fresh produce, fruits and the yummy treats we find at our local farmer’s markets. Have you ever considered how safe the products might be?  Setting out in the open air and being handled by many different people.  Here is a study that opened our eyes.

Researchers in Chapman University’s Food Science Program and their collaborators at University of Washington have just published a study on the presence of Salmonella and E. coli on certain products sold at farmers’ markets. The study focused on farmers’ markets in Los Angeles and Orange counties in California, as well as in the Seattle, Washington, area. Of the 133 samples tested from 13 farmers’ markets, 24.1 percent tested positive for E. coli and one sample tested positive for Salmonella.

“While farmers’ markets can become certified to ensure that each farmer is actually growing the commodities being sold, food safety is not addressed as part of the certification process.

Hellberg and her research team visited 49 different vendors at 13 farmers’ markets in Los Angeles and Orange Counties in California, and in the greater Seattle area collecting 133 samples between the period of July and October 2013. Each sample was equivalent to one pound and was tested that same day for both Salmonella and E. coli using methods from the United States Food and Drug Administration Bacteriological Analytical Manual.

A total of 16 samples had average E. coli counts considered to be unsatisfactory according to guidelines established by the Public Health Laboratory Service. When tested for Salmonella, 15 samples had suspicious growth but only one tested positive, a parsley sample from a Los Angeles County farmers’ market.

Orange County farmers’ markets had the highest percentage of samples with E. coli growth followed by farmers’ markets in the greater Seattle area and Los Angeles County.

Salmonella symptoms include diarrhea, abdominal cramps and fever around 12 to 72 hours after consumption that can last four to seven days. Symptoms for pathogenic forms of E. coli include severe stomach cramps, diarrhea that often becomes bloody, and vomiting.

According to the United States Department of Agriculture (USDA) Economic Research Service, farmers’ markets have been increasing since 2009 near urban areas, particularly along the East and West Coasts. In August 2013, there were more than 8,000 farmers’ markets listed in the USDA’s National Farmers’ Market directory.

The study was published in the Journal of the Science of Food and Agriculture.

Consistently ranked among the top universities in the West, Chapman University provides a uniquely personalized and interdisciplinary educational experience to highly qualified students. Their programs encourage innovation, creativity and collaboration, and focus on developing global citizen-leaders who are distinctively prepared to improve their community and their world. Visit www.chapman.edu

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