MiscellaneousMake Your Own

Homemade Thermos

How do you make a homemade thermos?

By pipi from Hungary

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October 29, 20130 found this helpful
Best Answer

Well first you need to get a styrofoam cup and wrap it in aluminum foil then make a glass layer outside with a vacuum that conducts no heat place another layer of metal outside that to reinforce the fragile glass layer and make a cap.

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November 1, 20160 found this helpful

What if you don/t have styrofoam?

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May 11, 20170 found this helpful

this is not HELPFUL AT ALL!!!!!!!!

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Anonymous
May 12, 20170 found this helpful

what if you cant make a vacume

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Anonymous
January 19, 20180 found this helpful

what if u are not allowed to use meal or vacuum for school

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Anonymous
March 28, 20180 found this helpful

This was no help

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November 8, 20130 found this helpful

Styrofoam,
duct tape,
bubble-wrap,
cling wrap,
aluminum foil,
fiber glass,
news paper,

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foam,
(etc..)

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November 8, 20131 found this helpful

Styrofoam, duct tape, bubble-wrap, cling wrap, aluminum foil, fiber glass, news paper, foam, (etc.)

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Anonymous
February 23, 20180 found this helpful

What materials would be good to use on the outside of the cup?

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November 22, 20180 found this helpful

i agree, most of those answers were NOT helpful. I assume you do not mean a thermos per se, but an insulated container to carry something hot or cold in....that is easy to do. First, get a liquid container with a tight lid (won't leak). Take some insulating material - newspapers, fabric layers....I find that polar fleece works really well. Wrap your liquid filled container in the insulating material, then place in a bag or other container large enough to contain both. The insulation will keep your hot (or cold) liquid hot or cold for quite some time.

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On a side note, you can improvise a fireless cooker/haybox cooker the same way (I cook in one all the time).
1. Bring the food you want to cook, say rice, to a boil in a pot with a tight fitting lid and no handle that sticks out very far.
2. Boil 10 minutes.
3. Wrap in 3 inch thick layer of insulation (polar fleece, polyester filled quilt, etc)
4. Let it sit - up to 4 hours - the food will finish cooking without further attention or fuel.
5. Open it up, and eat.
I have used the wrap cooker to make many items, just have the food cut in 1 inch pieces, and be sure it boils that 10 min to get it heated thru. My favorite things to cook this way are pre-soaked dry beans/pulses, cut up vegetables (carrots, potatoes, and the like) and stews of meat and cut up vegetables. Its so easy it is embarrassing. And it all uses the same thermos principal.

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