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Yogurt with colour defect, unpleasant flavor and odour

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Posted 20 February 2016 - 09:29 PM

Hi everyone!

Where I work, We are having a problem with the yogurt of a specific filling machine (we have two machines where we package the same strawberry, banana, and peach flavored stirred yogurt; the one with the problem is the oldest). We have some customers claims who have strawberry yogurt without colour and with umpleasant flavor and odour (like vinegar).
The straberry flavoring is artificial, the same used in the two machines.

Do you have some information about this kind of problem? We are improving the CIP of the machine. Do you have technical information about hygienic practices in thermoforming filling machines?



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Posted 23 February 2016 - 05:12 AM

Hi Piero,




A vinegar like off defect could be caused by Acetic acid bacteria


You need to investigate the source of contamination, are you using just flavors or fruit conserves?


Kind regards,



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