Steak Starter Guide: Understanding USDA and Japanese Wagyu Beef Grading

Steak can come across as intimidating, often reserved for special occasions or served in high-end restaurants. While most people feel unsure about buying or cooking it at home, steak can be simple if you understand the basics of choosing quality cuts.

Learn how to recognize quality beef and how to read the USDA and Japanese Wagyu grading systems through this guide.

What is a steak?

A steak is a fast-cooking cut of beef sliced across the muscle fibers, designed for high-heat cooking methods like grilling, broiling, or pan-searing. These cuts come from the animal's naturally tender parts. When cooked correctly, a steak delivers a unique sensory experience. The deep brown crust formed during searing locks in flavor, while fat marbling melts into the meat, creating juiciness and richness.

Not all beef cuts make for a great steak, though—learning how to choose those that do is your first step to better steak nights.

How to choose a steak: 5 signs of a great steak

Before you even look at labels like USDA Prime or Wagyu, look at the steak itself. Learning to recognize high-quality meat is a key skill in any steak-buying guide. The following are hallmarks of high-quality meat and can help identify premium beef when shopping:

1. Marbling 

Marbling, also called intramuscular fat, is the most important factor in beef grading. These fine white streaks of fat melt during cooking, naturally basting the meat from within. This process improves tenderness, juiciness, flavor, and overall palatability of the steak, making marbling a reliable visual predictor of eating quality.

When choosing steak, you’ll notice different marbling patterns:

Fine marbling – thin, evenly distributed flecks of fat that create a smooth texture and balanced richness (common in Wagyu and high-grade beef).

Medium marbling – the ideal balance for most home cooks, delivering juiciness and flavor without overwhelming richness.

Coarse marbling – larger, uneven fat streaks that may produce bold flavor but less consistent texture.

2. Color
Fresh steak should appear bright cherry-red. Avoid cuts with gray or brown discoloration.

3. Texture
A quality steak should feel firm yet slightly springy when pressed.

4. Thickness
Steaks around 1 to 1.5 inches thick cook more evenly and are easier to control when searing.

5. Aroma
Fresh beef should smell clean and neutral. Any sour odor is a warning sign.

Beef grading systems

Once you know how to choose steak visually, the next step is to understand grading systems. While steak cuts (ribeye, strip, tenderloin, and T-bone) tell you where the meat comes from, grading systems tell you what kind of eating experience to expect: tenderness, juiciness, and flavor.

Globally, several beef grading systems exist, but the two most influential for premium steak buyers are the following:

• USDA Grading (United States)
• JMGA Wagyu Grading (Japan)

Across all global grading systems, the evaluation is performed at the same anatomical location: the ribeye cross-section between the 12th and 13th rib. This area clearly shows the distribution of intramuscular fat (marbling). Despite their differences, they all depend on this common indicator, typically measured with the Beef Marbling Score (BMS). Other key factors graders examine at this ribeye section include:

• Age and maturity of the carcass
• Color, texture, and firmness of the lean meat

USDA beef grading system

The United States Department of Agriculture (USDA) Beef Grading System is regulated by the USDA Agricultural Marketing Service (AMS). It evaluates beef based on marbling, maturity age of the animal, texture, firmness, and color. Professional USDA graders assign these grades, which directly affect tenderness, juiciness, and flavor. The most common grades consumers encounter include:

USDA quality grades

Consumer tip: For steak cooking, USDA Prime and Choice represent the best steak options as they offer the best balance of tenderness, flavor, and consistency. USDA Select can still perform well when properly cooked, but generally contains less marbling and richness.

Japanese Wagyu grading 

Japanese beef grading is managed by the Japanese Meat Grading Association (JMGA) and is considered the most detailed and strict system in the world. Unlike the USDA, Japan grades beef using two combined scores:

1. Yield grade (A, B, C) – Measures how much usable meat comes from the carcass. 
2. Meat quality grade (1 to 5) – Based on four factors: marbling (BMS), meat color and brightness, firmness and texture, and fat color and quality. The lowest score among the four becomes the final quality grade.
   

    

Japanese beef grades

Important Japanese beef terms

• Wagyu: Refers to specific Japanese cattle breeds known for exceptional marbling and eating quality. Wagyu is not a steak cut.
• Kobe Beef: Certified Tajima Wagyu raised in Hyogo Prefecture under strict production and grading standards.
• Matsusaka Beef: Premium Japanese Black cattle raised in Mie Prefecture. Known for extraordinary marbling, sweetness, and delicate texture.
• Omi Beef: One of Japan’s oldest Wagyu brands, originating from Shiga Prefecture and prized for its fine marbling and refined flavor.
• The Big Three Wagyu Brands: Kobe Beef, Matsusaka Beef, and Omi Beef—are widely regarded as Japan's "Three Great Wagyu" brands, all of which come from Tajima cattle native to the Kansai region.
• A5 Wagyu: The highest combination of yield and quality grade recognized by the Japanese Meat Grading Association.

Consumer tip: Japanese Wagyu is not meant to be eaten like a full steak. It’s often sliced thin and enjoyed in smaller portions due to its richness. 

How to read beef grades at a glance

Certifications on farming practices

USDA Verified Programs and Certification Labels are essential for understanding quality and animal welfare in beef production. Grading measures the quality of the meat, while verified programs explain how the animals were raised.

Labels such as Organic, Grass-Fed, No Antibiotics Ever, Naturally Raised, and USDA Certified Tender help buyers choose beef that aligns with their health values, ethics, or flavor preferences. These labels do not guarantee marbling or tenderness but give transparency on farming practices behind the steak.

Whether you’re buying choice cuts for cooking at home or you’re treating yourself to a steak night out, understanding beef grading helps you be more confident in exploring the world of steak.

Cover Photo by Tarzeer Pictures. In-article Photos by Tarzeer Pictures and Miguel Rondilla. Infographic illustration by Venice Lauren Fernandez.