Don't know if my original comment went through. I take out as much as I think I will use over a month and store it in a small jar in the freezer. I use my vaccuum sealer for the rest...put the yeast (original bag and all) into a sealer bag, suck out the air and store in the freezer. I have done the same with a regular ziplock freezer bag after sucking the air out. The yeast has kept viable for up to two years.

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