Beef grading sets the standards for the various quality levels of beef. The beef grading program uses highly trained specialists and sometimes grading instruments to determine the official quality grade. Beef quality grading is voluntary and administered by the USDA and paid for by beef packers.
Prime beef is produced from young, well-fed cattle. It has abundant marbling, is produced in smaller quantities than other grades, and is often sold in hotels and restaurants. Prime roasts and steaks are excellent for roasting, grilling or broiling.
Choice beef is high quality and produced in highest quantity, but has less marbling than Prime. Choice roasts and steaks, especially from the rib and loin, will be very tender, juicy and flavorful. They are suited for roasting, grilling and broiling. Less tender cuts are perfect for slow-cooking.
Select beef is slightly leaner than Prime and Choice because it has less marbling. It can lack some tenderness, flavor and juiciness as compared to the higher grades. Select grade beef often benefits from slow-cooking or from marination prior to grilling or broiling.