It’s in the bag! A lot of bacteria, that is!
“Holier than thou” does not always mean “smarter than thou.”
Environmentally-conscious shoppers in California and Arizona, who use reusable shopping bags rather than “paper or plastic,” were asked whether they ever wash the bags, by researchers from the University of Arizona and Loma Linda University.
To add stupidity to ignorance, 3/4 of those queried don’t use separate bags for meats and for vegetables, and about 1/3 said they use the bags for all sorts of things, such as storing snacks and carrying books.
A former microbiologist like me (I’ve told you that) wants to know, “What’s in the bag?”
Researchers tested 84 of the bags for bacteria. They found LOTS of bacteria in all but one bag, and coliform bacteria (suggesting raw meat or uncooked-food contamination) in HALF of them! Esherichia coli (an intestinal bacterium found in your gut and mine) was found in 12% of the bags.
So, being scientists, the researchers wrote a report, Assessment of the Potential for Cross Contamination of Food Products by Reusable Shopping Bags (PDF). The Centers for Disease Control and Prevention (one of my former customers in high tech) has an FAQ on Foodborne Infections.
The researchers included, in their discussion:
The LATimes online article points out “Hey! It’s natural!”
Of course, horse manure is too! (“Organic,” too…!)
The GOOD news…? The researchers also found that machine washing or hand washing of the reusable bags reduced bacterial levels to almost nothing!
You can purchase reusable canvas tote bags decorated with photos of California at the Cheshire Cat Photo™ Store on CafePress®.
If you use them to carry FOOD, please wash them!
-Bill at
Cheshire Cat Photo™ – “Your Guide to California’s Wonderland™”
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