I just got 6, free 6gal food grade (HDPE2) buckets from local bakery, i know the guy who knows another guy who works there so thats how i knew they have them available but this place has been throwing away buckets like that for months/years, they get some kind of pre mixed dough or cake filling in those buckets, add hot water, mix, bake and throw away empty bucket. They are much sturdier than pail buckets and bigger than homedepo, and come with rubber lined lid, i use them for grain storage from last group buy but if i run out of fermenters i may try to use them for fermentation as well. If you know a friendly bakery its worth asking them about buckets like that