Its Large retail store operated on a self-service basis, selling groceries, fresh produce, meat, bakery and dairy products, and sometimes an assortment of nonfood goods. Supermarkets gained acceptance in the United States during the 1930s. 

The early stores were usually located in reconverted industrial buildings in outlying areas; they had no elaborate display facilities, and their primary advantage was their low prices. During the 1940s and ’50s, they became the major food-marketing channel in the United States, and in the 1950s they spread through much of Europe.