i'm talking dry staples like beans, rice, lentils, maybe powdered milk, etc. are food safe buckets any good? oxygen absorber or desiccant? i have access to a vacuum sealer (bags are expensive though), a bottle of loose desiccant, and some plastic tubs. looking for pretty long term (over a year) storage
If there's a place that sells bulk nut butters, ask what they do with the empty buckets. See if you can get some free buckets with the lids (including the big rubber gasket in the lid) for free.
Beans, rice, lentils can probably be fine in a cool dark place stored in anything. Maybe a desiccant pack on top for good measure.
Powders, if in a bucket, probably want a plastic bag that seals as a liner.
I would say Mason style jars but that shit is getting hard to find for the half gallon and gallon jars with lids/seals.
if i could get used icing buckets would they work well if cleaned? it's for bulk icing
If you can see the inside of the lid, look for a white or black rubber seal that is inset. That's the main thing I would check on. I always felt more confident with the ones with the seals.