Note: groups.io will be down for maintenance on Wednesday, October 5th, starting at 9AM Pacific Time (4PM Wednesday October 5, 2022 UTC), for approximately one hour.
When I did an internet search for bulk quantity flax seeds years ago, I found companies that offer Cold Milled Flax Seed for human and equine. They say due to their process, the shelf life is up to two years if I remember correctly. I buy a 50 pound bag of cold milled flax seed for my two horses. Hope that info helps you.
Joy K in CA 2022