Find places that will sell basic raw nutritious ingredients in large quantities ( e.g. rice, beans, nuts). Big savings (if safely stored). Side story: One time

Find places that will sell basic raw nutritious ingredients in large quantities ( e.g. rice, beans, nuts). Big savings (if safely stored). Side story: One time at a co-op I bought a 9-pound bag of cashews (unsalted!). Just for a lark I ate nothing else until it was gone. No downside (but several years before I wanted more.)