The wooden board wins

Posted: February 8th, 2010 - 3:06pm by Rob Mancini

Author: 
Rob Mancini
 
Food safety experts always recommend using two cutting boards, one strictly for meat and meat products and the other for fruits and vegetables to avoid cross contamination. Great advice, now what type of cutting board will reduce microbial counts after cleaning; plastic, wood, or marble?
 
Ninemsn reports:
 
Plastic comes a definite last and that's because bacteria are able to breed in the cuts left by knives.
Marble came in second because bacteria spread everywhere. Marble also loses points because it's tough on knives.
In the final wash-up, it was wood that blew the competition out of the water. This is no surprise to Professor Cliver. In many similar experiments, wood's always been a winner.
Leila: "Why is wood so much better?"
Professor Cliver: "It's a very porous material and the fluid is drawn into the wood by capillary action and if there are bacteria in the fluid they go in and they never come back alive."
Leila: "So the wooden boards kill the bacteria?"
Professor: "Well, they die off slowly. It may take a few hours, but all the same, they aren't in a position to cause any trouble."
Leila: "So wood's the way to go?"
Professor: "In my opinion."
But the professor adds a rider — be sure to choose a tight-grained hardwood board. If the wood's too soft, those pesky bacteria can multiply in deep knife cuts.
 
 
I had the opportunity to swab a number of cutting boards when shooting the series Kitchen Crimes, both plastic and wooden boards. Microbial counts were consistently high because bacteria will hide in the cracks and crevices of the board rendering cleaning ineffective. It is important to toss or refinish your cutting board if it appears to be heavily grooved to prevent this from occurring.
 
Here are some tips on how to effectively clean and sanitize your board:
1. Wash with soap and water using friction.
2. Rinse with warm water.
3. Sanitize using a mild solution of bleach to water, approximately 5mL bleach to 500mL water.
4. Finally allow to air dry for optimum results.
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Comments

Anonymous says:

I'm in a public health program at a University which I'll refrain from naming... suffice it to say it begins with an R and lies in Toronto. We were always taught wood cutting boards take the deepest divots and collect bacteria the best and should be avoided. This post should be a wake-up call to a lot of PHIs

Posted on February 9th, 2010 - 1:54pm

Anonymous says:

OK, if you put your plastic cutting board in the dishwasher and wash and sanitize the hell out of it, is it OK? Because the wooden boards just don't stand up to that for very long.

Posted on February 9th, 2010 - 11:26pm

Laura says:

Do you know where I can get more information on this? I remember the University of Wisconsin performing a similiar study (minus the marble) which supported the use of hard woods.

Posted on February 10th, 2010 - 10:30am

Anonymous says:

What about plastic boards that you put in the dishwasher? Mine have grooves from cutting, but I put them in the dishwasher after every use and I thought that would kill the bacteria.

Posted on February 10th, 2010 - 12:14pm

Norma Greer says:

In addition to the care instructions above, whether plastic or wooden, grooves in cutting boards need attention. Wooden ones need to be planed and plastic discarded. Dishwashers are probably effective if there is an effective heat sanitizing cycle. Wooden items should not be placed in dishwashers as they cause the wood to swell and even deeper cracks form.

Posted on February 26th, 2010 - 11:05am

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