Yeah, if it's food safe (uncolored), go for it. I use food safe buckets as well but I don't use a spout because I'm paranoid about leaks. You can use a hole saw or such and cut a hole and stick something like this in. https://www.amazon.com/PERA-Bottling-Replacement-Homebrew-Fermenter/dp/B08XYMSPTG?ref_=ast_sto_dp