I was planning to put some flour in my storage in bulk quantities a couple of years ago. I could not find a recommended storage container. It seemed that from the old timey wooden flour barrel to the paper bag was it. Like most people, I do store my flour in an airtight tupperware canister in the kitchen and that seems to work okay. I did buy a bag of flour in the new plastic bag at the grocery and it is not fit to bake with. It is okay for other stuff just not for baking. I do a lot of baking in my microwave and that stuff made a disaster of my muffins. It does not seem to stay incorporated like the flour in the dry bags.
"I have not failed. I've just found 10,000 ways that won't work." --- Thomas Edison