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Sterility testing of Tetrapak UHT fruit juices


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#1 Rener De Jesus

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Posted 31 October 2017 - 03:02 AM

Hi everyone! We are about to conduct sterility testing of our new tetrapak system. Tetrapak has recommended sampling plan and we are going to follow their recommendation, which is ~7000 packs. However, this is my first time to do sterility testing and I have no idea how many samples should I test for microbiology analysis. Does anyone here could share their thoughts? Thanks ahead.


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#2 Tony-C

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Posted 03 November 2017 - 06:34 AM

Hi Rener,

 

Are you following the Tetra Pak Guideline for Microbiological Evaluation of Commercially Sterile Products?:

 

Attached File  TP Sterility Testing Protocols.pdf   259.12KB   11 downloads

 

We packed and incubated around 10,000 packs per machine when I commissioned a UHT plant a few years ago. Samples before and after events and 5% of the trial product were tested for micro.

 

Kind regards,

 

Tony

 

 


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