Everybody has seen them, the instant hand warmers sold during the winter months for insane prices. However In this instructable Im going to show you an easy way to make an instant handwarmer with things that you proably have liying around your house!
Its a little odd for me to be posting this in the middle of summer, but in hopes of another stay warm contest I would like to see your feed back to help improve this instructable.
EDIT: BE SAFE
please avoid direct skin contact with the solution! I am by no means a chemist, I do not know how safe this reaction actually is. I've heard several people say several different things. Some people claim this produces hydrochloric acid, but I never got burned from touching it. Whatever is actually happening doesn't matter, please be safe and do not touch the solution or inhale the fumes! Thank you!
EDIT: Published in Popular Science! :D
Step 1: Gather the materials
There are only 4 things needed to make the handwarmer, all of them are very easy to aquire, if you dont already have them.
*one large ziploc bag
*one smaller ziploc bag
*some calcium chloride ice melter pellets
really it is!