If I'm not mistaken, iron oxide hand warmers are the same material, and work the same, except bigger, cheaper and easier to find.
yup, they are, found a youtube video to back it up, hope this helps http://www.youtube.com/watch?v=p24Bd2LInRA
yup, they are, found a youtube video to back it up, hope this helps http://www.youtube.com/watch?v=p24Bd2LInRA
Oxygen absorbers from the LDS storage house are only 0.10 each. a bag of 100 is $10 that will do, 100 buckets of food, i like to put 3 in each bucket for over kill, that's still 33 buckets! handwarms aren't that cheap.
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