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Insulated Canteen From No-Refill Propane Bottle

Cool Instructable from user hpstoutharrow. Of course these propane bottles are not meant to be opened, so you have to be careful to follow a sensible procedure, but it seems to me like hpstoutharrow has done a good job in providing that. Commenters there seem to agree.

Once any residual flammable gas is safely vented, both valves are removed by drilling, and the bottom of the bottle is cut out to insert a 20 oz plastic beverage bottle, which has been shrunk slightly by exposure to boiling water. The neck of the soda bottle protrudes where the tank’s center valve was, and is secured there with an o-ring. Spray-in foam insulation holds the liner in place from the sides and bottom, and insulates its contents from the metal bottle. Finally, the bottom of the tank is reattached for appearance’s sake. [via Hack a Day]

2 thoughts on “Insulated Canteen From No-Refill Propane Bottle

  1. Be sure to immediately wash out and dry the container if the liquid has sugar in it. It may lead to increased bacterial growth. Otherwise cool idea and there doesn’t seem to be much to back up the claim that the plastic leeches into your drink so you should be fine on that ground.

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I am descended from 5,000 generations of tool-using primates. Also, I went to college and stuff. I am a long-time contributor to MAKE magazine and makezine.com. My work has also appeared in ReadyMade, c't – Magazin für Computertechnik, and The Wall Street Journal.

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