I've been looking at buying some flour in a bigger sack. I usually buy flour in 3kg bags and have various other small bags of rye etc. As the 'B-word`' seems to be finally happening, I was going to buy a 10kg sack of white bread flour from Wessex Mills just in case but I'm not sure how to store it? It's not a massive sack and I tend to make 2 - 3 loaves a weeks.
Can you buy Gamma Lids? https://www.amazon.com/Gamma2-4123-Gamma-Seal-Lid/dp/B0089QJQTS
I’ve used them for years with great success.
that you can put into your flour container, and freeze them individually. Frozen flour will keep for a long time that way. The only catch is that you must have the freezer space.
Best of luck
OldWoodenSpoon