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Extending the Shelf Life of Food Products


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#1 Murae

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Posted 10 December 2015 - 03:25 PM

If I have a range of products that are 24 months shelf life

and I have a range of products that are 12 months shelf life

 

Is there any reason why I would not be able to extend the shelf life on the 12 months to 24 months bearing in mind that both use the same the same ingredients (although different composition) and arrive, stored, mixed, packed in the same way?

 

Murae



#2 brianweber

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Posted 10 December 2015 - 03:33 PM

Have you done a shelf life study on the 12 month product at 24 months? Were the results the same as the 24 month product?


Brian


#3 Charles.C

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Posted 10 December 2015 - 04:32 PM

Hi Murae,

 

As a corollary to the previous post -

 

What is the reason that composition variation causes a 100% difference in shelf life ?


Kind Regards,

 

Charles.C


#4 PS1

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Posted 11 December 2015 - 06:55 AM

Further ditto the above.

 

Composition can affect the shelf life i.e. water activity, pH etc has a big affect on shelf life. Packaging also has an effect e.g. foil is better than some flexible wraps. Gas flushing also helps. 

Have you done any shelf life studies on the 12month products?



#5 Murae

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Posted 11 December 2015 - 09:49 AM

Hi All,



#6 Murae

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Posted 11 December 2015 - 10:04 AM

There is no reason for the difference in shelf life apart from they are 2 different brands (both our own)

 

The packaging used is the same, products are packed the same and all raw materials are treated the same as in checks/storage etc.

 

Analytically Raw Material tests are carried our for each so there is not any part of composition that is open to unknown issues.

 

Likewise a range of the 12 month product has been tested when at 24 months which showed product analytically and visually there were no issues.

 

the 24 month brand was acquired, when acquiring a new business which it was already producing, the 12 month we were already producing on our site. 

 

Murae



#7 Charles.C

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Posted 11 December 2015 - 10:43 AM

Hi Murae,

 

I think you are saying that if, for the 2 brands X,Y,  minimum acceptable "Quality" = A, then

 

Quality of brand X after 24 month is >= A

 

and

 

Quality of brand Y after 24 month is >= A

 

So shelf life for each of brands X,Y is >=  24 months


Kind Regards,

 

Charles.C


#8 Jayaprahash

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Posted 11 December 2015 - 11:32 AM

If I have a range of products that are 24 months shelf life

and I have a range of products that are 12 months shelf life

 

Is there any reason why I would not be able to extend the shelf life on the 12 months to 24 months bearing in mind that both use the same the same ingredients (although different composition) and arrive, stored, mixed, packed in the same way?

 

Murae

 

Shelf life of any products after preserving is

 

1. Outside temperature ( storage temperature, ambient conditions) if the product stored at low temperature have more shelf life than high temperature, reason high temperature  leads more chemical changes inside food pouches.

12 months at @ 30 C will have 24 months at <20 deg. C 

2. Types of packaging is another factor - barrier properties - WVTR Water vapor transmission rate and OTR Oxygen transmission rate. 

3. Process methodology - please ensure the pouches not contain air inside ( preferable low buoyancy or vacuum packed)

 

hope this address your problems

 



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#9 Charles.C

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Posted 11 December 2015 - 12:13 PM

Hi Jayaprahesh,

 

I agree with yr conceptual comments.

 

Shelf life validation tests should certainly be done under controlled conditions.

 

Hopefully labelled shelf lives are conservative.


Kind Regards,

 

Charles.C


#10 Murae

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Posted 11 December 2015 - 01:04 PM

Hi Jayaprahesh,


I agree with your comments in general but for the purpose of my question each brand is treated exactly the same as mention before, packaging the same etc.


As we incorporated a brand the was already set at 24 months I have been tasked to find out why our 12 month brand cannot be the same due to the similarities with each.


I cannot seem to find what will determine an answer as I have carried out testing etc. which has not shown that it would be an issue micro/nutritionally


Murae



#11 Berton lee

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Posted 05 August 2019 - 06:59 AM

We are manufacturer of WVTR&OTR, any help, please feel free to contact me. 






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