Nope - nothing in it can expire or become ineffective. A caveat...
02/27/13 11:16 AM
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Heather
Reged: 12/09/02
Posts: 7799
Loc: Seattle, WA
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you need to store it airtight, as it will absorb moisture from the surroundings. So, as long as it's been either unopened, or opened but stored in an airtight container, you should be just fine.
If it's been left out open or just loosely covered, eventually it will absorb enough moisture from the air that it will clump and taste weird, just as an open container of flour or baking soda would.
We do have to put a best by date on the label with the lot code - that is a food packaging requirement.
But the fiber is extremely inert - it's impervious to heat and cold, and nothing in expires or becomes ineffective over time.
So, no worries!
Best,
H
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Heather is the Administrator of the IBS Message Boards. She is the author of Eating for IBS and The First Year: IBS, and the CEO of Heather's Tummy Care. Join her IBS Newsletter. Meet Heather on Facebook!
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