Frozen fries
What year did McDonald's  stop using fresh-cut potatoes and change to frozen fries?
French fries
Spreading popularity. Frozen fries. The J. R. Simplot Company is credited with successfully commercializing French fries in frozen form during the 1940s. Subsequently, in 1967, Ray Kroc of McDonald's contracted the Simplot company to supply them with frozen fries, replacing fresh-cut potatoes. In 2004, 29% of the United States' potato crop were used to make frozen fries – 90% consumed by the food services sector and 10% by retail. It is estimated that 80% of households in the UK buy frozen fries each year. Canada's McCain Foods is the world's leading producer of frozen fries.