I live in Florida.
I feel your pain. I live in Louisiana and envy those cool basements in other areas. I would like someone who is preping in our area to give us some pointers. One good one given here was to freeze your flour for a few days and that will kill the bugs that are already in it. I store my flour in my freezer and frig.
Oven can your flour to keep the bugs out. Will last indefinitely.
Thank you for the comments on Florida storage. I, unfortunately, live in a villa and don’t have access to a garage. Most of my storage area consists of an attic space I built out and an outdoor workshop/shed. Either way, both are exposed to the Florida heat and humidity and associated changes. I’m a bit of a pack rat, and my wife is very particular about what’s stored in the house, so having large barrels around would likely be met with derision.
That being said, I think I’ve convinced her to let me buy a vacuum sealer. Does anyone have experience with them who might point out specific manufacturers or models? I see some on Amazon for ~$120, which is tolerable.