McDonald's sells about nine million pounds of french fries across the globe daily. The company does not keep specific records on how many individual french fries are sold.
McDonald's is the dominant buyer of potatoes in the United States, and the company purchases about 3.4 billion pounds of potatoes in America each year. Twice a year, the company conducts a French Fry Evaluation. The French Fry Evaluation is a contest for the best potatoes between the company's three major potato suppliers in the United States: McCain, Lamb Weston and J.R. Simplot. McDonald's attributes their huge international sales to this contest and other quality control efforts.