All I see so far are fridge-friendly sizes and the larger tubs aren't airtight. We can I find what I need? Preferably at a b&m store as shipping might be high. Thanks!
I'd check with a nearby restaurant supply. Coffee vendors use large, 2 gal and up, vacuum containers. I just did a Google search for vacuum containers and came up with a lot of possibilities.
Go to walmart and buy these. They are the opaque ones with the white lids. A 4 pack of different sizes goes for 6 bucks or so for the entire 4. My tins stay fresh for 8 months to a year in them.