best way to preserve seed beans?

Can you seed experts advise on the best way to keep some green pole beans and lima bean seeds for planting in a future year? We have some heirloom beans, and were not able to plant all of them this year. Would like to keep them until at least next spring. Suggestion? Just a cool dry place or in the fridge?
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A cool dry place is fine. If you are in an area that has bugs that get into flour stored on the shelf, you may want to put them in a coffee can, sprinkle some Sevin dust on top of them, the lid on it and seal it with tape. They will last for years that way.
Dwayne

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