What is the characteristic of a steak cooked medium well?

A steak cooked medium well is characterized by being mostly cooked through with just a hint of pink at the center. This level of doneness means that the steak is cooked to an internal temperature of about 150-160°F (65-71°C). The slight pink center indicates that while the steak is predominantly gray-brown throughout, it has retained just enough moisture and tenderness to ensure a flavorful eating experience.

In contrast, a steak cooked fully (which has no pink) would be categorized as well done, and would be drier and firmer in texture. The presence of a red center, which suggests a medium or medium rare steak, indicates that the steak is cooked less than the medium well level. A bright red throughout would indicate that the steak is raw or very rare. Thus, the defining characteristic of a medium well steak is indeed the slight pink center.