Organic flour does not contain Azod (Azodicarbonamide) or other additives. Enriched flour has a lot of additives. Flour is bleached unless it says unbleached. Bleached flour doesn't need as much time in the silos so saves money in the storage time. That is the only reason for it, flour will turn white on it's own after milling but takes time. If you can't by organic then at least get unbleached. I use the Pepperidge Farm very thin bread even though it is not that healthy. It would be very hard to keep from enriched flour products unless you made every one from scratch.