4 replies to this topic

[foodsafetyboy]

Dear All,

I just want to know everyone's insight regarding this question:

"Is it possible to extend the shelf life of a chilled item by freezing it?"

Thanks in advance,

Food safety boy

[Charles.C]

Dear foodsafetyboy,

By freezing, i assume you mean <= -12degC.

It probably depends on things like what it is, how it's packaged, and at what stage in its chilled shelf-life when frozen.

eg, freezing microwaveable chilled, fully-cooked sausages at the beginning of their shelf-life seems to be safe from personal experience. product fairly edible after a few months but not comparable to original item.

Similarly freezing tuna sandwiches was less successful, unless you enjoy eating rubber.

I assume there was a reason for yr question ?

Rgds / Charles.C

[medamo]

Dear food safety boy

Of course you will extend the shelt life of a chilled item by frezzing it,
but you will lose the texture and appearance of the item
you must know the theory of food freservation
in simple way the difference between cooling and frezzing are:
Cooling: you store commodity at temperature and RH which reduce the respiration and prevent moisture looses, this will keep commodity in same appearance
while frezzing you prvent the movement of water cell but by frezzing the volume of cell will increase and cell membrane will break down therefore the shape of item will change, also in some cases frezzing burn will appears
I hope that I have explained to you in easy way

best regards,
Medhat Shaban

[foodsafetyboy]

Dear food safety boy

Of course you will extend the shelt life of a chilled item by frezzing it,
but you will lose the texture and appearance of the item
you must know the theory of food freservation
in simple way the difference between cooling and frezzing are:
Cooling: you store commodity at temperature and RH which reduce the respiration and prevent moisture looses, this will keep commodity in same appearance
while frezzing you prvent the movement of water cell but by frezzing the volume of cell will increase and cell membrane will break down therefore the shape of item will change, also in some cases frezzing burn will appears
I hope that I have explained to you in easy way

best regards,
Medhat Shaban

Thanks for the insights guys!
fact, freezing of raw chilled meat may pose quality issues and less food safety issues (provided pre and post handling of it is done in an hygienic manner)

regards, food safety boy

[FRAC User]

Dear All,

I just want to know everyone's insight regarding this question:

"Is it possible to extend the shelf life of a chilled item by freezing it?"

Thanks in advance,

Food safety boy

Hi food safety boy ,

ya it is possible only in frozen food like vegetables, fruits, meat &meat product but dry and dessicated food can not be preserve by this because they may lost their nutritive value.

thanks