Differences:

1. Different distribution

A5 and the ratio of beef fat to meat is high, and the distribution is more even; M5 has low fat content and uniform distribution.

2. Different uses

A5 meat is soft and suitable for frying steak; M5 meat is hard and suitable for cooking.

Related introduction:

Cattle are divided into five grades from high to low, namely A5, A4, A3, A2 and A1. Marble-like distribution can be seen in beef above grade A3, among which grade A5 and beef are the top grade. There is a strict process to judge the grade of beef cattle, which will be judged one by one from the distribution of marble, the color of meat quality and the degree of relaxation.

in the evaluation process, only when the two auditors agree can the next step be evaluated. In each step, a score will be given, and the final grade is not registered according to the highest level, but the lowest level as the final grade. For example, the snowflake distribution of a piece of beef is A5, but its meat color is only A2, so in the end, this piece of beef can only be reduced to A2.

Reference: Baidu Encyclopedia-He Niu