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Listeria in the freezer?

freezer listeria food safety survival growth environmental swab positive results bakery

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#1 Candrade

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Posted 24 February 2014 - 07:36 PM

Hello All,

 

I received some Environmental Swabs results back from the lab, and Listeria hit positive on the Freezer floor (Zone 4) of a bakery Plant. I confess I was not expecting this. Have anyone came across this situation before? Is it common?

I appreciate any comment or suggestions?

 

Thanks   


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#2 SPL

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Posted 24 February 2014 - 08:00 PM

Yes. Listeria has the ability to live and grow (.5 - 4 logs)  in refrigerated temperature. I would suggest looking at sanitation practices and traffic flow design .


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#3 Setanta

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Posted 24 February 2014 - 08:06 PM

You will want to let your sanitation company know and you will probably want to test that area each week until you can get 4 consecutive good results.

 

Setanta


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#4 CMHeywood

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Posted 27 February 2014 - 09:38 PM

In general, bacteria is not killed in a freezer.  The low temperature only halts the growth of the bacteria.  It will start to multiply when your product warms up.


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