Regarding flour and dry milk, I was able to make connections with a bakery wholesaler who sells 50-pound bags of flour (we buy bread flour because it is unbleached and not bromated
and will work just as well as all purpose), semolina flour (for noodles), oats, dry milk, shortening, and non-iodized salt (good to have for preserving food).
Ingredients in her products include unbleached, un bromated
wheat flour, and non-alkalized cocoa.
The institute's most recent study of problem toxins identified perchloroethylene, used in dry cleaning; Diphthalate, used in vinyl toys and shower curtains; formaldehyde, used in personal care products and building materials; and lead and bromated
flame retardants as priority toxic chemicals.