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Keeping food warm in tinfoil?

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#1 Funnington

Posted 14 November 2012 - 05:00 PM

I've was scanning on cooking websites yesterday and stumbled across an American based cooking forum.  There were lots of posts about sending hot food wrapped in tinfoil and it stays warm until lunch time.  

Has anyone tried this?  I can't honestly see how food would keep warm until lunch time.  I'd imagine a soggy, cold portion of food. shrug.gif

Anyone tried it?

#2 protart roflcoptor

Posted 14 November 2012 - 05:15 PM

I'd imagine a perfect breeding ground for bacteria if the food was of a certain type.

#3 Funnington

Posted 14 November 2012 - 05:17 PM

Yuk, I didn't think of that!  Perhaps the tinfoil in the US is super, super strong.  I was quietly excited, my children would love to take hot food (or warm food tongue.gif )

#4 Bobsygirls

Posted 14 November 2012 - 05:22 PM

Never heard of a thermos?

#5 jayskette

Posted 14 November 2012 - 05:24 PM

wouldn't a thermos be safer?

#6 Propaganda

Posted 14 November 2012 - 05:33 PM

It wouldn't work. A thermos is probably your best bet.

#7 Funnington

Posted 14 November 2012 - 05:54 PM

Never heard of a thermos?

Very patronising mad.gif .  Maybe you should rethink your approach.

A thermos is not ideal for my five year old so, that's why I'm inquisitive with alternatives.

#8 PatG

Posted 14 November 2012 - 06:04 PM

alfoil can have insulating properties due to its reflective nature; however, being a thin metal it also readily transfers heat through.  Bacteria which can cause food poisoning can multiply on food between around 5 and 60 degrees celcius.  I tend to think that cold food tastes best cold and hot food properly hot - sort of warm food that should be steaming hot tends to be a bit blah.  I believe that some American schools tend to have lunch a lot earlier than Australian schools.

#9 EssentialBludger

Posted 14 November 2012 - 06:11 PM

What's wrong with a thermos for a 5yo? My 7yo has been taking a thermos to school for ages. Very easy to undo herself, and on the odd occasion I've put the lid on to tight, there's always a teacher to help her.

She loves taking hot food to school. Soup and Spag Bol are her favs. And still hot at lunch time.

#10 Jjbeanz

Posted 14 November 2012 - 06:20 PM

I can't see how tinfoil would keep food warm at all unless it's something different in the US?
I took one of those little thermos to work one day with steaming hot pumpkin soup in it and it was Luke warm by lunch time ( 5 hrs after I packed it ) is there a thermos that keeps the food hotter?

#11 *LucyE*

Posted 14 November 2012 - 11:24 PM

I took one of those little thermos to work one day with steaming hot pumpkin soup in it and it was Luke warm by lunch time ( 5 hrs after I packed it ) is there a thermos that keeps the food hotter?

There are different quality standards.  Some brands are better than others.

Also, did you preheat the thermos by putting hot water in it for 5 mins before filling?

#12 MrsShine

Posted 14 November 2012 - 11:35 PM

Ooh I loved my thermos lunches when I was a kid!

I often had yummy hot lentil & veg soup in winter. I was definitely not a sandwich kid original.gif

I would think you could possibly get away with "Luke warm" snacks for recess if you're careful about the contents in terms of bacteria - thinking maybe a cheese toastie? In tin foil if wrapped & sealed tight enough, you could also double up with an insulated lunchbox thing but reckon it wouldn't be hot by lunch time.

#13 Crap Napper

Posted 15 November 2012 - 05:30 AM

Just another idea - have you considered dry ice cubes? we bought some to freeze and use in our esky while camping, but when I received them the info sheet said that once they have been thoroughly rehydrated, you can also microwave them and use them as a heat pack. I wonder if a hot sheet of those, with some food wrapped well in tin foil would be an alternative?

To the PP who asked about thermos quality, my Thermos brand thermoses work really well. OP, we also have a Thermos brand Foogoo which is awesome for little kids. Easy to open, perfect size, wide mouth. Foogoo

#14 *LucyE*

Posted 15 November 2012 - 08:40 AM

Just another idea - have you considered dry ice cubes?

I would be really worried about these for young children.  Actually, even fool hardy teens.

They have the potential to be really dangerous or even fatal.  It is not something I would ever allow children to use without close supervision.

#15 ingrid74

Posted 15 November 2012 - 09:37 AM

I bought a mini thermos for my 5 year old and she takes a hot lunch quite often (pasta etc). Works well for her!

#16 Crap Napper

Posted 15 November 2012 - 12:54 PM

I would be really worried about these for young children. Actually, even fool hardy teens.

They have the potential to be really dangerous or even fatal. It is not something I would ever allow children to use without close supervision.

Maybe we are talking about different things? I can't see how a child who knows not to eat plastic could harm him/herself with these. It is essentially a sheet (probably A5 size) which has several layers - plastic on top and bottom, and a gel polymer in the middle. You hydrate the polymer in water, and either freeze for cold applications, or heat in the microwave for hot applications. Nothing leaks out or can be accessed without knives and scissors, and you can cut the sheets to the size you need - be it individual cubes or smaller sheets. They are reusable and dry, and do not melt (hence the name dry ice) but do not contain liquid nitrogen. This is what I am talking about.

#17 *LucyE*

Posted 15 November 2012 - 09:59 PM

Maybe we are talking about different things?


You are talking about Techni Ice.

Dry ice is carbon dioxide in a solid state.  Liquid nitrogen is different again, and as the name suggests, it is in a liquid form.

#18 *Lib*

Posted 15 November 2012 - 10:05 PM

I was going to get a thermos for my dd, but I worry about how hot to make stuff in it....I'd hate for it to be too hot for her at lunch time!

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