Kuroge Wagyu is a breed of Wagyu (Japanese beef cattle) and accounts for about 90% of all Wagyu raised in Japan, making it the most representative type of Wagyu. As the name “Kuroge” (black hair) suggests, these cattle have black coats. Japan’s three most famous Wagyu brands—Kobe Beef, Matsusaka Beef, and Omi Beef—all come from Kuroge Wagyu. The defining characteristic of Kuroge Wagyu is its fine marbling, with fat intricately distributed between the muscle fibers. This marbling, often referred to as “sashi,” is what gives the meat its exceptional tenderness and rich flavor. The finer and more evenly distributed the marbling, the higher the quality of the beef. Meat with abundant marbling is called “Shimofuri Niku,” meaning “frosted meat,” as the fat resembles frost settled over the surface. In addition to Kuroge Wagyu, other Wagyu breeds raised in Japan include Akaushi (Brown Wagyu), Japanese Shorthorn, and Mukaku Wagyu (Polled Wagyu).

The rib roast is located on the back of the cow, extending to the waist, positioned between the shoulder roast and tenderloin. This cut is very tender with a moderate amount of fat, characterized by marbling. Therefore, it is juicy and richly flavored. Rib roast is primarily used in dishes such as steak, roast beef, sukiyaki, shabu-shabu, and barbecue. When prepared as a steak, it retains the meat's natural flavor well. It is also very suitable for roast beef, providing a tender and juicy texture. For sukiyaki and shabu-shabu, it is thinly sliced and quickly cooked to maximize the meat's flavor and tenderness. Rib roast is versatile and suitable for various cooking methods, providing satisfaction in any dish. It is one of the most popular beef cuts, loved by many for its tenderness and flavor.