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Allergen Cross Contamination - aerolised proteins vs VOCs

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heather@zannacookhouse.ie

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Posted 12 October 2022 - 03:35 PM

We recently had an audit from a key customer who said that our thawing fish needed to be in a separate area, due to the allergen cross contamination potential (from the smell of the fish) however after doing some reading, apparently it is only the aerolised protein (usually given off during cooking / steaming) that can cause an allergic reaction and not the volatile oil compounds - how can one determine the difference (on a basic level - no testing involved) and to prove that there is no / little risk created by the "smell".



Scampi

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Posted 12 October 2022 - 03:50 PM

WOW   You're customer sounds...................................delightful

 

Smell and allergens have zero correlation

 

Cross-contact happens when one food comes into contact with another food and their proteins mix

 

Allergen containing proteins are not aerosols


Please stop referring to me as Sir/sirs


Setanta

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Posted 12 October 2022 - 04:06 PM

They do sound awesome. Do you have a corner that you use but not give them any guarantee?


-Setanta         

 

 

 


qa_maddy

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Posted 12 October 2022 - 06:43 PM

If allergen cross contact was caused by smells we wouldn't be able to received half our shipments the way we do at our seafood plant. Fish smells, nomrally moreso when it's starting to turn, but that smell is not an indicator of allergens present in the air. 



heather@zannacookhouse.ie

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Posted 13 October 2022 - 07:39 AM

Yes, the customer is challenging but they're the customer :spoton:

 

Can anyone tell me if there IS a risk of aerolised protein, when we boil / cook allergen containing ingredients (in particular, fish, celery, sulphites) in a prep kitchen, contaminating other ingredients that are stored in the same area?  I really would like to find some scientific paper to be able to use as evidence.  So far I've only found "housewife" blogs talking about allergen contamination (no disrespect intended).



G M

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Posted 24 October 2022 - 06:43 PM

...  I really would like to find some scientific paper to be able to use as evidence.  ...

 

This review is a little thin on the details regarding cooking risk, but might get you pointed in a useful direction.

 

https://www.ncbi.nlm...les/PMC6324195/



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