Leave the tablets in the foil packets as any exposure to air and humidity/moisture will effectively ruin them.


IIRC, there was a post on backpacker.com (or another hiking website) a few years ago and a company Rep gave a few more details on the whys of not opening the foil packets until needed.
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Earth and sky, woods and fields, lakes and rivers, the mountain and the sea, are excellent schoolmasters, and teach some of us more than we can ever learn from books.

John Lubbock