So I live in South Georgia where it is VERY humid (we're talking 90-100% humid most days), and I can't seem to keep feed from going rancid or growing maggots. I have tried plastic storage bins with snap-on lids, as well as a metal "trash can" looking thing with a locking lid that I got at TSC. Neither kept the feed from spoiling. I can't keep it indoors, the coop is way to far away to make that trek every day. Has anyone found a fool-proof way to store feed in heat/humidity?