<P> Although any cut of beef can be used to produce ground beef, chuck steak is a popular choice because of its rich flavor and balance of meat - to - fat ratio . Round steak is also often used . Ground beef is usually categorized based on the cut and fat percentage: </P> <Ul> <Li> Chuck: 78--84% lean </Li> <Li> Round: 85--89% lean </Li> <Li> Sirloin: 90--95% lean </Li> </Ul> <Li> Chuck: 78--84% lean </Li> <Li> Round: 85--89% lean </Li>

Where does ground beef come from on a cow