Time and temperature control for blast freezing of Fish

Dear friends, I am here with a doubt. What will the time and temperature control for Blast freezing process intended to produce Frozen fish. What is the time limit to reach the core temperature to -18 ?? Thanks

 

Dear friends, I am here with a doubt. What will the time and temperature control for Blast freezing process intended to produce Frozen fish. What is the time limit to reach the core temperature to -18 ?? Thanks

 

It obviously depends on things like thickness of the product, total load in freezer, refrigeration capacity.

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Opinions vary but just as a non-blast freezer example, plate freezers are (ideally) often expected to achieve -18degC for a typical, approx. 7kg box of fish fillets in approx. 2 hours.

It obviously depends on things like thickness of the product, total load in freezer, refrigeration capacity.

.
Opinions vary but just as a non-blast freezer example, plate freezers are (ideally) often expected to achieve -18degC for a typical, approx. 7kg box of fish fillets in approx. 2 hours.

Dear Charles

Thanks for your valuable information, but i need to know is there any mandatory regulation that says if blast freezing the core temp of the product should reach -18 deg celcius with in 4 hours. That is were i got stucked.

Thanks

Dear Charles

Thanks for your valuable information, but i need to know is there any mandatory regulation that says if blast freezing the core temp of the product should reach -18 deg celcius with in 4 hours. That is were i got stucked.

Thanks

Hi ronin,

UK Guidelines attached.

Blast freezing time Guidelines.pdf   218.33KB   58 downloads

Hi ronin,

 

UK Guidelines attached.

 

Blast freezing time Guidelines.pdf

Dear Charles

      Thanks for the help and such a valuable information, can you provide me EU regulation where it says " in blast freezer food be reduced from a temperature of +70ºC to –18ºC in no more than 240 minutes".

Thanks

Dear Charles

      Thanks for the help and such a valuable information, can you provide me EU regulation where it says " in blast freezer food be reduced from a temperature of +70ºC to –18ºC in no more than 240 minutes".

 

Thanks

Hi Ronin,

IIRC, such a Regulation for NRTE frozen fish for EU does not exist. I think the EU prefer the terminology "rapidly".

But happy to be proven incorrect. :smile:

India seems to advocate a range of times -

frozen food processing industry in India.pdf   1.95MB   35 downloads