the plastic buckets are O2 permeable. You can buy 5 gallon bucket size mylar bags with O2 packets:
https://www.amazon.com/Dry-Packs-10...rd_wg=6Va8m&psc=1&refRID=ETF4M8RFXJMVJ3FDZFP4
https://www.amazon.com/Dry-Packs-10...rd_wg=6Va8m&psc=1&refRID=ETF4M8RFXJMVJ3FDZFP4
Learned a couple of things recently. I got in on the Patriot Pantry $17.76 deal and bought four weeks worth. I wanted to have them in a bucket for ease of storage and to be able to add some additional oxygen absorbers. Bought three 10 packs of absorbers (2000cc) on amazon and two 5gal buckets with lids from Home Depot. The lids have a gasket or o-ring on them, but honestly I wasn't expecting too much for just a few bucks. After dividing the food into the buckets, I had a decent amount of room left in each, so I opened one of the packs of absorbers and threw 5 into each bucket... yeah, that was overkill. So the things I learned: I don't need that many oxygen absorber packs for a 5 gal bucket; the absorbers work, as indicated by the collapsed sides of the buckets; the seals on the lids have held for over a month now, even with the deformed buckets.