90% lean

90% lean refers to ground meat (most commonly beef) containing 90% lean muscle tissue and 10% fat by weight. This classification indicates a specific fat-to-meat ratio established through grinding and mixing processes. Ground meat is produced by mechanically grinding whole muscle cuts, allowing for standardized composition that meets USDA labeling standards. The "90/10" designation ensures consistent texture, moisture content, and cooking characteristics, making it predictable for both commercial and home cooking applications. The remaining 10% fat provides flavor and helps retain moisture during cooking, preventing the meat from becoming excessively dry.

90% lean ground meat is versatile in everyday cooking, commonly used for burgers, meatballs, meat sauces, tacos, and ground meat-based casseroles. Its lower fat content makes it suitable for health-conscious cooking while maintaining adequate flavor and juiciness. It performs well in both quick-cooking applications (pan-browning, griddle cooking) and longer preparations (braising, slow cooking). The leaner ratio requires slightly more careful handling to prevent drying out—many cooks add binders like eggs or breadcrumbs when forming patties or meatballs, or pair it with moisture-rich sauces and gravies to enhance palatability.