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You need to check the expiration date on the jar.

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Wiki User

14y ago
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Wiki User

12y ago

I just opened mine like 3 weeks ago and they were great when i opened it. I just opened it again today and it tasted weird. So i'd say less than 2 weeks..

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Anonymous

Lvl 1
4y ago

2 years

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Q: How long can you keep matzo in an unopened box?
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