ROB MANCINI: The nasty dishcloth

Posted: January 23rd, 2009 - 12:59pm by Doug Powell

I have inspected a number of households that use the same dishcloth over and over again without laundering.  I used to do the same until my wife insisted that we launder our cloth daily.  

The porous nature of dishcloths allow for the accumulation of small particles of food thereby providing a moist, wonderful environment for bacterial growth. Bacterial counts including mold and yeast recovered from such cloths have been amazing, not to mention the smell. 

During my bachelor days, food safety and sanitation in general was somewhat questionable.  The dishcloth, rather, dishrag, would be changed when the smell became unbearable, probably not the best thing to do, kinda like guessing whether poultry is cooked without using a thermometer. 

It is simple, one could launder the cloth or place the cloth in a container of water in the microwave for a minute or so, that should do it. 

Fecal coliform bacteria, including E.coli were recovered in such numbers during the production of the television series Kitchen Crimes that were horrific -- and don’t get me started on the amount of yeast and mold. I’m frightened as is. 

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Comments

Jessica says:

Wait, for real? You can put the cloth in water in the microwave? Does that really work? I spend my life feeling guilty about paper towel use when I could just be microwaving my dish towels?

Posted on January 25th, 2009 - 11:42am

robinjames1 says:

I've heard this, but seems like there would be a huge margin of error here?If you don't get the water hot enough, you may actually encourage growth!I want to forward this on as I believe the intent is great, but I'll await your reply.Cheers!JL

Posted on January 26th, 2009 - 4:02pm

Rob Mancini says:

Hello and thanks for your questions. It is necessary to submerge the cloth in water and microwave on high for one to two minutes, this will ensure bacterial inactivation. A good article that dealt with this is: P.K. Park and D. O. Cliver. 1997. Disinfection of kitchen sponges and dishcloths by microwaveoven. Dairy, Food and Environmental-Sanitation. 17(3): 146-149. I hope this helps!!

Posted on January 27th, 2009 - 11:04am

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