[exhaustedmomma]

I'm not sure how you packed them "airtight", but this should give you some information that might help.
STORAGE LIFE OF DRY FOODS

Search web using "long term storage mylar dry ice food grade buckets" for more how to information.

[exhaustedmomma]

In case anybody needs info on storing food yourself:
Millennium Ark: Long Term Food Storage

Food Storage Calculator

Food Storage Wheat

Prudent Food Storage: Questions and Answers

Emergency Preparedness

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