Heating the Wheat bag

Submitted: Sunday, Jul 05, 2009 at 09:34
ThreadID: 70406 Views:5055 Replies:7 FollowUps:6
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Wheat bags hold significantly less heat than a similar sized hot water bottle
due to the average moisture content of only around 14%, however their shape and flexibility oftenmakes them
first choice for when a bit of comfort, or some stiff joints need a warm up.
But the difficulty of heating them in a car makes them less useful.

It was cold dark wet and windy as we headed out of town for a drive early saturday, but I had an ace up my sleeve to keep the wife happy, and she quickly made use of the heat bag I had pre-heated at home in the microwave.

This was fine - but these things don't last long and an hour into the trip we had a long stop and got back into the car cold and damp again.
A nice warm heat bag would have really been appreciated by someone a little sore from to much gardening.

Giving my best "husband has all the answers look" , I reached over to the back seat and pulled out a nice re-warmed heatbag.

These things are very hard to heat without a mircowave normally, but the solution I used was to place it in our little 12v electric oven before getting out of the car and in 15 minutes it was nice and cozy again.





Note 1 A heat bag has high insulation value and takes a long time to heat, turning it over to expose cold areas to warmth helps.

Note 2 Heat bags have caused many fires by spontaneous combustion, while this is very unlikely by heating in the above manner , heating in a caravan's mircowave and then leaving unattended in a bed is a big no-no.

Note 3 I used our high speed 12v oven as per thread 39429, which is about a 1/3 faster than your normally $29.95 Dick Smith item.Image Could Not Be Found
Robin Miller

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Reply By: Member - Fred G NSW - Sunday, Jul 05, 2009 at 09:51

Sunday, Jul 05, 2009 at 09:51
Wheat bags used to be popular/common in nursing homes, but are now illegal due to the burn factor. Neverless, a heated wheat bag is hard to beat when "uncle arthur" visits.
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Follow Up By: Robin Miller - Sunday, Jul 05, 2009 at 15:08

Sunday, Jul 05, 2009 at 15:08
Hi Fred

Yes and I note I left out a bit of an explanation as to why these things work well heated this way.

Seeds can also have an oil content and heating in a microwave can see very high temperatures generated as well as just dry out if the oven is left on far to long.

In this little stove the temps are regulated to about 140c and item is enclosed by the stove and this gives a nice soft sort of heat and makes it hard to abuse the process which all adds up to a better job but a lot slower the microwaves.
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Reply By: Mandrake - Sunday, Jul 05, 2009 at 10:25

Sunday, Jul 05, 2009 at 10:25
Aren't you supposed to place a cup of water in the microwave with the bag - to stop the possibility of fire and reduce the burnt wheat smell ?

Cheers

Steve
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Follow Up By: Robin Miller - Sunday, Jul 05, 2009 at 15:11

Sunday, Jul 05, 2009 at 15:11
I have read that somewhere Steve , but we never do that with 4 of them that seem to be on the go in our house over winter.

Great little asset in the car they are though.
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Follow Up By: Madfisher - Sunday, Jul 05, 2009 at 21:12

Sunday, Jul 05, 2009 at 21:12
Hi Robin,
Swmbo isw an RN and always puts a cup of water in the microwave, to reduce the fire risk.
Cheers Pete
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Reply By: Member - Noel K (NT) - Sunday, Jul 05, 2009 at 15:13

Sunday, Jul 05, 2009 at 15:13
No wonder you have got a sore back, trying to get a bag of bloody wheat in the microwave.
Must have big microwave's down there.
Come to think of it I thought they had done away with bags.

Noel K. ( ex resident of Geraldton a wheat town).
AnswerID: 373190

Follow Up By: Wherehegon - Sunday, Jul 05, 2009 at 22:27

Sunday, Jul 05, 2009 at 22:27
LOLOLOL......... Regards Steve M
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Reply By: Member - Sigmund (VIC) - Sunday, Jul 05, 2009 at 18:45

Sunday, Jul 05, 2009 at 18:45
FWIW I use a gel ice/hot pack. Can be reheated when you boil the billy.

Another tip if you have muscles that stiffen up is to lie on or sit against a tennis or cricket ball at the affected spot, move around against it, and the pressure can help to loosen things up.
AnswerID: 373214

Reply By: Member - Mfewster(SA) - Sunday, Jul 05, 2009 at 21:50

Sunday, Jul 05, 2009 at 21:50
I can't find the source for this but have read that heating them in microwaves stuffs the magnetron in microwaves. not sure whether or not the cuip of water in the micro at the same time might, or might not, help this.
AnswerID: 373246

Follow Up By: Robin Miller - Monday, Jul 06, 2009 at 07:41

Monday, Jul 06, 2009 at 07:41
What they would have been reffering to Mfewster , is that Microwave is like a radio transmitter and needs a load just like radio needs a matched antenna.

Used to be an issue once but these days they have much better control of the engergy output.



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Follow Up By: Member - Mfewster(SA) - Monday, Jul 06, 2009 at 08:38

Monday, Jul 06, 2009 at 08:38
Thank you Robin. I feel much better now about SWMBO's nightly ritual in cold weather.
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Reply By: D200Dug- Tuesday, Jul 07, 2009 at 12:05

Tuesday, Jul 07, 2009 at 12:05
If you don't like the smell of wheat or find wheat difficult to find Rice makes a great alternative.

Holds heat just the same and does not give off a smell like a produce store :-)
AnswerID: 373441

Reply By: Member -Dodger - Tuesday, Jul 07, 2009 at 17:09

Tuesday, Jul 07, 2009 at 17:09
A Little hanky panky also heats one up.

YEAH,




I used to have a handle on life, but it broke.

Cheers Dodg.

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