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no...salt, sugar, flour...none of these expire. your epsom salt package might have an expiration date..probably indicating shelf life....generally how long it can be expected to remain on a shelf before it's effected by moisture. moisture can case it to clump and get hard...but if it's unopened or well sealed it should not get hard and doesn't go bad or lose it's effectiveness.

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12y ago

What else can I help you with?