3 replies to this topic

[Freezer]

Just got registered here and I'd like to post a few questions.

1- My freezer should go to -30° on deep freezing mode and then get back to -18°. Is such a temperature change safe for the food that's inside it ?
2- What's the best way to preserve fresh salad for a long time? Vacuum packing?
3- I possess both a freezer with deep freezing mode and a vacuum sealing machine. Is it a good way to preserve the meat's flavour and nutrients by vacuum packing it and then deep freezing it or is better to just vacuum packing it and then just freezing it?
4- Are packages for vacuum sealing safe for what concerns the release of bad substances when in contact with food?

Thanks

[Simon]

Just got registered here and I'd like to post a few questions.

1- My freezer should go to -30° on deep freezing mode and then get back to -18°. Is such a temperature change safe for the food that's inside it ?
2- What's the best way to preserve fresh salad for a long time? Vacuum packing?
3- I possess both a freezer with deep freezing mode and a vacuum sealing machine. Is it a good way to preserve the meat's flavour and nutrients by vacuum packing it and then deep freezing it or is better to just vacuum packing it and then just freezing it?
4- Are packages for vacuum sealing safe for what concerns the release of bad substances when in contact with food?

Thanks

Can anyone help new member freezer with the above freezer questions.

[Charles.C]

Is such a temperature change safe for the food that's inside it

?

Are we talking about home freezers. ? I didn't realise they were capable of such low values, mine certainly isn't .

1.The word "safe" is perhaps not suitable ? Generally, any pathogenic bacterial / viral activity should be nil in the range referred. Other possible chemical contaminants will depend on the food. Chemical changes relating to quality typically continue at a reduced speed with decreasing temperature. Not sure if the rule is general but IMEX (seafood) the (quality-chemical driven) shelf life is substantially extended at -30degC. However frequent swings of temperature are a negating factor against any such gains. Quantitatively how much will depend on the product / situation I suppose.
2.3. No idea, sorry.
4. What are these mysterious "bad substances". If you mean chemicals within the plastic, this is presumably taken care of by the use of "food-grade" packaging for the appropriate situation.

Rgds / Charles.C

[Simon]

Thanks Charles.

Freezer are you still around or snowbound - did Charles answer your question?

By the way it's snowing in Manchester, England today and I have the log burning stove roaring. Glass of red wine to follow - when the kids go to bed.

Regards,
Simon