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About Beef Grading 201: How The World Grades Beef

By reading and understanding this guide you will know more about beef than 90% of the people out there. We break down beef grading from around the world.

Questions

How do the main beef grading systems differ?

The U.S. (USDA), Japanese (JMGA), and Australian (MSA/AUS-MEAT) systems use different scales and criteria. The USDA system focuses on marbling, color, and maturity. The Japanese system is the most detailed, evaluating marbling, meat color, firmness, and fat quality on a scale of 1-5 for each factor. The Australian MSA system measures meat color, marbling, fat depth, carcass weight, maturity, and pH. The Japanese system is capable of grading higher marbling levels (BMS 11-12) than the U.S. system (maximum BMS 5 for Angus).

What does BMS mean and why is it important?

BMS stands for Beef Marbling Score, a universal indicator of intramuscular fat that allows comparison across different grading systems. Marbling is important because it directly impacts beef tenderness, juiciness, and flavor. Higher BMS scores generally indicate better eating quality. Angus beef averages BMS 2-5, while Wagyu cattle average BMS 4-6 and can reach BMS 11-12 depending on genetics, nutrition, and age at slaughter.

Why can beef of the same USDA grade vary in quality?

The USDA grading system emphasizes marbling, color, and maturity, but does not account for other factors that significantly impact meat quality such as cattle diet, living conditions, and post-slaughter handling. This leaves room for misinformation, which is why you can find a wide range in prices for USDA Choice and USDA Prime beef. The difference in quality even between two steaks with the same grade can be significant.

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Is marbling the only thing that matters for beef quality?

No. While marbling is important, the source of the beef, cattle diet, and aging are equally crucial factors. Many meat experts argue that grading systems put too much emphasis on marbling. For example, grass-fed beef typically grades USDA Choice at best but can be extremely juicy and tender. After BMS 5, quality becomes a matter of personal preference. Factors like proper aging (30+ days) and responsible sourcing are just as important as marbling scores.

What does Meat N' Bone offer in terms of beef quality?

Meat N' Bone focuses exclusively on high-end steaks, ensuring every product grades BMS 3 or higher. The company offers a curated selection that includes grass-fed beef, aged steaks (30+ days and 45+ days), USDA Prime, USDA Choice, Wagyu-Angus crosses, Japanese A5 Wagyu, and other premium options. Meat N' Bone emphasizes that quality comes from multiple factors including sourcing, diet, handling, and aging, not just marbling scores.

What is the difference between USDA Prime and USDA Choice beef?

USDA Prime beef has abundant marbling and is the highest grade sold to consumers. USDA Choice beef has moderate marbling and is the second-highest grade. High-end steakhouses typically serve USDA Prime and/or Choice. However, a high-quality USDA Choice steak from a reputable source like Meat N' Bone can be as good as a USDA Prime steak, especially when properly aged.

How does the Japanese beef grading system work?

The Japanese system, managed by the JMGA (Japanese Meat Grading Association), consists of two grades: Yield Grade (A, B, or C) and Quality Grade (1-5). Yield Grade A usually indicates fullblood Wagyu, B indicates crossbred Wagyu, and C indicates Angus or other cattle. Quality Grade evaluates four factors: meat marbling, meat color and brightness, meat firmness and texture, and fat color, luster and quality. Each factor is scored 1-5, with 5 being the highest.

What is the Australian beef grading system?

The Australian beef grading system is known as Meat Standards Australia (MSA) and is regulated by Meat and Livestock Australia (MLA). MSA is comprehensive, measuring meat color, marbling, fat depth, carcass weight, maturity, and pH. The MSA marbling system uses a scale of 100 (no intramuscular fat) to 1190 (extreme amounts). The older AUS-MEAT standard uses a 0-9 scale similar to BMS, where AUS-MEAT Grade 5 typically corresponds to MSA 700-800.

How does Wagyu beef compare to Angus beef in terms of grading?

Wagyu beef is generally regarded as the highest grade due to extreme levels of marbling. Angus beef, the most predominant beef in America, averages BMS 2 but reaches a maximum BMS of 5. Wagyu cattle average BMS 4-6 but can reach BMS 11-12 depending on genetics, nutrition, and age at slaughter. Meat N' Bone offers Wagyu-Angus crosses as a price-value option and Japanese F1 Wagyu as a blend of western and eastern beef standards.

What should consumers know about beef grading before purchasing?

Consumers should understand that grading systems vary by country and that the same grade can have significant quality differences depending on sourcing, diet, and handling. The USDA system leaves the most room for misinformation. It's important to buy from reputable sources like Meat N' Bone that focus on overall quality beyond just marbling scores. Personal preference mattersβ€”after BMS 5, quality becomes subjective, and factors like aging and sourcing are equally important.