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Beck & Bulow Difference / how to cook wagyu beef

How to Cook Wagyu Beef at Home: A Complete Guide to Perfect Marbling

Learning how to cook wagyu beef is one of the most rewarding skills any home cook can develop. Unlike conventional beef, wagyu is defined by its extraordinary intramuscular fat — that iconic, web-like marbling that melts into the meat during cooking to deliver an unmatched buttery richness, tenderness, and depth of flavor. But that same marbling is also what makes wagyu uniquely sensitive to heat, timing, and technique. Cook it wrong and you've wasted one of the finest proteins money can buy. Cook it right, and you'll produce a restaurant-caliber experience in your own kitchen. At Beck & Bulow, we source only the highest-quality wagyu beef available, and we want every customer to get the absolute most out of each cut. Whether you're preparing a thick ribeye, a delicate striploin, or a beautifully marbled flat iron, this comprehensive guide will walk you through everything — from pan selection and rendering wagyu fat properly, to ideal resting times, wagyu doneness temperature targets, and seasoning philosophy. Follow these principles and you'll never second-guess yourself in the kitchen again.

Understanding Wagyu: What Makes It Different From Any Other Beef

Before you even pick up a pan, it's essential to understand why how to cook wagyu beef requires a fundamentally different approach than cooking a conventional USDA Prime or Choice steak. The word "wagyu" literally translates to "Japanese cow," and it refers to four specific cattle breeds — Japanese Black, Japanese Brown, Japanese Polled, and Japanese Shorthorn — that are genetically predisposed to developing exceptional intramuscular fat deposits. This fat isn't just about richness; it contains a significantly higher ratio of monounsaturated fatty acids, particularly oleic acid, which is the same heart-healthy fat found in olive oil.

This unique fat composition has two major practical implications for cooking. First, wagyu fat has a noticeably lower melting point than conventional beef fat — approximately 77°F (25°C) compared to conventional beef fat which melts closer to 113°F (45°C). This means the fat begins rendering wagyu fat almost immediately upon contact with a hot cooking surface. Second, the sheer density of this intramuscular marbling means wagyu is naturally self-basting — as the fat renders, it continuously bastes the surrounding muscle fibers, keeping the meat extraordinarily moist even when cooked to medium. These characteristics demand lower cooking temperatures, shorter cooking times, and a much more attentive approach than you'd apply to a conventional steak.

At Beck & Bulow, our wagyu offerings range from American wagyu crossbreeds — which offer incredible marbling at an accessible price point — to full-blood wagyu with BMS (Beef Marbling Standard) scores that rival the legendary Kobe and Matsusaka beef of Japan. Understanding where your specific cut falls on the marbling spectrum will help you calibrate your technique before you even turn on the burner.

American Wagyu vs. Japanese Wagyu: Practical Cooking Differences

American wagyu is typically a crossbreed between Japanese wagyu genetics and domestic Angus cattle. The result is a beef that carries significantly more marbling than conventional USDA Prime, but slightly less than full-blood Japanese wagyu. For home cooks, this actually represents an ideal entry point — the marbling is abundant enough to deliver that signature wagyu experience, but the slightly firmer fat structure gives you a slightly wider margin of error during cooking wagyu steak.

Full-blood Japanese wagyu, by contrast, can have marbling so dense that each bite contains as much fat as meat. At this extreme level, the wagyu searing technique changes considerably — many purists cook full-blood wagyu cuts in very thin slices, barely 30 seconds per side, treating the fat almost like a conduit rather than a component. For the purposes of this guide, we'll address techniques appropriate for both, so you can apply the right method no matter what's on your cutting board.

Essential Equipment for Cooking Wagyu at Home

Even the most perfect piece of wagyu beef can be undermined by the wrong cooking equipment. Because rendering wagyu fat correctly requires precise, even heat distribution, your choice of pan matters enormously. Here's what you need to know about selecting the right tools before you cook.

The Best Pans for the Wagyu Searing Technique

A heavy cast iron skillet is the gold standard for cooking wagyu steak at home. Cast iron retains heat exceptionally well and distributes it evenly across its surface, which prevents the hot spots that can cause uneven searing or burning. When you place a wagyu steak on properly preheated cast iron, you get an immediate, aggressive sear that builds the Maillard reaction crust without requiring prolonged contact time that would overcook the interior.

Carbon steel pans are a close second — lighter than cast iron with similar heat retention properties, they heat up slightly faster and are easier to maneuver. Avoid nonstick pans entirely for wagyu: the high surface temperatures required for a proper wagyu searing technique can damage nonstick coatings, and nonstick surfaces don't promote the kind of deep crust formation that makes wagyu's exterior as memorable as its interior. Stainless steel pans work, but they require more skill to manage sticking.

A reliable instant-read thermometer is non-negotiable when cooking wagyu. Because the wagyu doneness temperature window is much narrower than for conventional beef — and because overcooking is essentially irreversible — you cannot rely on touch tests or visual cues alone. Invest in a quality thermometer and use it every time.

Additional Tools Worth Having

A wire rack set inside a rimmed baking sheet is essential for the reverse sear method and for resting your steak after cooking. Tongs — never a fork — should be used for turning the steak, since piercing the meat allows rendered fat and juices to escape. A kitchen timer will help you manage precise searing intervals, and a small brush or spoon is useful for basting with the rendered fat that accumulates in the pan.

Preparing Wagyu Beef Before It Hits the Heat

Proper preparation is perhaps the most underappreciated phase of how to cook wagyu beef. The decisions you make in the 30–60 minutes before cooking have a profound effect on the final result.

Thawing and Tempering

If your Beck & Bulow wagyu arrives frozen — which ensures maximum freshness and quality during shipping — always thaw it slowly in the refrigerator for 24–48 hours. Never use a microwave or cold water bath for wagyu; these methods thaw unevenly and can begin partially cooking the outermost layers of fat, compromising both texture and flavor before the steak ever sees a pan.

Once thawed, remove the steak from the refrigerator 30–45 minutes before cooking and allow it to come to room temperature. This step is especially critical for wagyu because of its low-melting-point fat: a cold wagyu steak placed in a hot pan will experience an extreme surface-to-interior temperature gradient, causing the exterior to overcook before the interior reaches the desired wagyu doneness temperature. Tempering the steak closes this gap and allows for more even, controlled cooking throughout.

Seasoning Wagyu: Less Is More

The philosophy of seasoning wagyu is radically different from seasoning conventional beef. Where a USDA Choice ribeye might benefit from bold rubs, compound butters, and assertive marinades, wagyu demands restraint. The natural flavor of properly marbled wagyu beef is so complex and rich that heavy seasoning actively competes with — and diminishes — what makes wagyu special.

The optimal approach is simple: kosher salt applied generously to both surfaces 30–40 minutes before cooking, and freshly cracked black pepper applied just before the steak hits the pan. The salt draws out a small amount of surface moisture, then reabsorbs and begins dissolving proteins that enhance browning. Pepper applied too early can burn during the high-heat sear, so timing matters. Some wagyu enthusiasts choose to skip pepper entirely on full-blood Japanese wagyu and use only a small amount of fleur de sel as a finishing salt after cooking. This approach lets the fat's natural sweetness and umami take center stage without distraction.

The Core Cooking Methods: Pan Sear, Reverse Sear, and Teppanyaki Style

There is no single "correct" method for how to cook wagyu beef — different cuts, marbling levels, and thickness call for different approaches. However, there are three primary techniques that home cooks should master: the direct pan sear, the reverse sear, and the teppanyaki or Japanese tabletop method.

Method 1: The Direct Pan Sear (Best for 3/4" to 1" Cuts)

The direct pan sear is the most common and accessible technique for cooking wagyu steak at home. Begin by heating your cast iron skillet over high heat for 3–5 minutes until it's smoking hot. Here's a critical departure from conventional steak wisdom: do not add oil or butter to the pan before placing wagyu. Because of wagyu's exceptional marbling and the nature of rendering wagyu fat, the steak will immediately begin releasing its own fat — more than enough to prevent sticking and to promote browning.

Place the steak in the pan and do not move it for 60–90 seconds. You should hear an aggressive sizzle immediately. After 60–90 seconds, flip the steak and sear the second side for the same duration. For a 1-inch thick American wagyu steak aimed at medium-rare, total pan time will typically be 3–4 minutes. Use your instant-read thermometer frequently, targeting an internal temperature of 125–130°F for medium-rare, which will carry over to 130–135°F during resting.

As the steak cooks, you'll notice the pan filling with rendered fat. Use a spoon to baste the top surface of the steak with this fat continuously — this is a classic French technique called arroser, and it amplifies flavor while ensuring even cooking on the top surface. Finish by searing the edges of the steak, holding it upright with tongs, to render any external fat cap.

Method 2: The Reverse Sear (Best for Thick Cuts 1.5" and Above)

For thicker wagyu cuts — thick-cut ribeyes, tomahawks, or porterhouses — the reverse sear method produces superior results. In the reverse sear, you cook the steak in a low oven first, then finish with a screaming-hot pan sear. This approach allows you to bring the interior of the steak to within 10–15°F of your target wagyu doneness temperature using gentle, even heat before exposing it to the aggressive surface temperatures of a sear.

Preheat your oven to 225–250°F. Place the seasoned wagyu on a wire rack over a baking sheet and insert an oven-safe probe thermometer. Cook until the internal temperature reaches 115°F for medium-rare. Remove the steak and let it rest for 5 minutes while you heat your cast iron skillet to maximum heat. Sear the steak for 60–75 seconds per side — at this point you're only building the crust, not cooking the interior, since the interior is nearly at temperature. Rest for 5 minutes before serving.

Method 3: Teppanyaki Style (Ideal for Full-Blood Japanese Wagyu)

The Japanese teppanyaki method is the traditional approach for cooking full-blood wagyu, and it's highly instructive for home cooks because it emphasizes the unique properties of wagyu fat. In teppanyaki, a chunk of wagyu fat trimmed from the cut is first rubbed across the flat iron surface to grease it. The wagyu is then sliced thinly — often 1/4 to 1/3 inch — and cooked for 20–30 seconds per side at high heat. The result is a steak that's caramelized on both surfaces but still barely warmed through in the center.

This technique can be approximated at home using a well-seasoned cast iron griddle or large skillet. The key insight from teppanyaki is that full-blood wagyu requires less cooking time than you'd ever imagine — the goal is fat activation and surface caramelization, not interior cooking in the conventional sense.

Wagyu Doneness Temperature Guide: The Science of Getting It Right

Understanding wagyu doneness temperature is perhaps the most technically important aspect of how to cook wagyu beef. Conventional steak doneness charts don't map perfectly onto wagyu for one simple reason: wagyu fat begins rendering at much lower temperatures than conventional fat. This means that wagyu at medium-rare is already releasing and circulating an enormous amount of its intramuscular fat — and by medium-well, much of that fat has escaped, leaving the meat noticeably drier and less flavorful than it would have been at a lower doneness level.

Why Medium-Rare Is the Gold Standard for Wagyu

Most wagyu experts, Japanese beef sommeliers, and premium steakhouse chefs agree that medium-rare — an internal temperature of 130–135°F after resting — is the ideal doneness for American wagyu and most Japanese wagyu cuts. At this temperature, the intramuscular fat is fully rendered and distributed throughout the meat, the texture is supremely tender, and the flavor is at its most complex. Going above medium (145°F+) begins to compromise the wagyu experience noticeably, as rendered fat drains away from the muscle fibers and the texture becomes firmer.

Doneness Level Pull-from-Heat Temp Final Resting Temp Wagyu Suitability
Rare 115–120°F 120–125°F Acceptable for thin-sliced full-blood
Medium-Rare 125–130°F 130–135°F Optimal — highly recommended
Medium 135–140°F 140–145°F Acceptable — some marbling lost
Medium-Well 145–150°F 150–155°F Not recommended — significant fat loss
Well Done 155°F+ 160°F+ Not recommended — defeats the purpose

Note that carryover cooking — the continued rise in internal temperature after the steak is removed from heat — is real and significant. A wagyu steak pulled from the pan at 125°F will typically rest up to 130–132°F, which is ideal for medium-rare. Always pull slightly below your target temperature to account for this carryover. Resting wagyu for 5–8 minutes on a warm plate or cutting board allows the juices and rendered fats to redistribute through the muscle fibers, resulting in a noticeably juicier, more flavorful steak when sliced.

Comparing Wagyu Cuts: Which Beck & Bulow Options Work Best for Which Methods

Not every wagyu cut responds the same way to every cooking method. Understanding the structural differences between cuts allows you to make smarter decisions and apply the right wagyu searing technique for each specific purchase. Beck & Bulow offers an outstanding range of wagyu beef cuts, and matching cut to technique is the first step toward a perfect result.

Wagyu Cut Marbling Level Best Cooking Method Target Thickness Special Notes
Ribeye Very High Direct Sear or Reverse Sear 1–1.5 inches Render fat cap before searing flat surfaces
New York Strip High Direct Sear 1 inch Score fat cap to prevent curling
Filet Mignon Moderate Sear and oven finish 1.5–2 inches Less fat, focus on texture and crust
Flat Iron High Direct Sear, quick cook 3/4–1 inch Slice against grain; excellent value cut
Tomahawk Very High Reverse Sear 2+ inches Low-and-slow oven essential before sear
Ground Wagyu High Cast iron smash or patty N/A No added fat needed; use medium heat

Pairing Wagyu With Other Premium Proteins: Building a Memorable Meal

One of the most rewarding aspects of cooking wagyu is building a complete meal around it. Because wagyu beef is so rich and flavorful, it pairs beautifully with lighter proteins and sides that offer contrast rather than competition. At Beck & Bulow, we offer a full range of premium proteins that complement wagyu beautifully as part of a multi-course meal or surf-and-turf experience.

For surf-and-turf, our wild-caught seafood — particularly scallops, salmon, or lobster — provides a sweet, briny counterpoint to the deep, fatty richness of wagyu. The contrast in texture and flavor profile is extraordinary. If you're building a multi-protein dinner experience, consider starting guests with a lighter appetizer featuring our free-range elk carpaccio or tartare before moving to the wagyu main course — elk's lean, gamey character provides a wonderful flavor bridge.

For those who want to explore other premium beef options alongside wagyu, our free-range beef collection offers excellent conventional steaks that allow guests to experience the direct contrast between standard premium beef and wagyu's extraordinary marbling. This side-by-side tasting approach is one of the best ways to truly appreciate what makes wagyu remarkable. Additionally, our free-range bison — with its lean, mineral-rich profile — makes a superb side dish or second-course option when thinly sliced and quickly seared.

Side Dishes That Let Wagyu Shine

The best side dishes for wagyu share one quality: they support rather than compete. Simple roasted vegetables — asparagus, broccolini, baby carrots — with minimal seasoning are ideal. A wedge salad with light vinaigrette cleanses the palate between bites. Truffle-infused preparations — truffle risotto, truffle fries — echo the earthy, umami notes in wagyu's fat. Avoid heavily spiced, acidic, or sweet sides that would overwhelm the delicate fat flavors. Japanese accompaniments — steamed short-grain rice, pickled vegetables, ponzu dipping sauce — are authentically harmonious with wagyu's origins and flavor profile.

Common Wagyu Cooking Mistakes and How to Avoid Them

Even experienced cooks make avoidable mistakes when approaching how to cook wagyu beef for the first time. Here are the most common errors we see, and exactly how to prevent them.

Mistake 1: Cooking Straight from the Refrigerator

Placing a cold wagyu steak in a hot pan creates an extreme temperature gradient that results in an overcooked exterior and an undercooked interior. Always allow 30–45 minutes of room temperature tempering before cooking wagyu steak. This single step dramatically improves evenness of cooking and helps ensure you hit your target wagyu doneness temperature throughout the cut.

Mistake 2: Using Too Much Additional Fat in the Pan

Pouring olive oil or butter into the pan before adding wagyu is unnecessary and can actually harm the final result. The excess external fat creates a barrier between the steak's surface and the pan, reducing the intensity of the Maillard reaction and producing a less compelling crust. Trust the wagyu's own fat — it will render quickly and provide all the lubrication the pan needs. Reserve butter for optional basting in the final minute of cooking if you desire an additional layer of richness.

Mistake 3: Overcooking Out of Habit

If you're accustomed to cooking conventional steak to medium or medium-well, the instinct to keep the heat going can be hard to resist. With wagyu, this instinct must be overridden. Overcooking wagyu destroys the very quality that makes it exceptional — as the rendering wagyu fat continues beyond medium-rare, the fat literally drains out of the muscle, leaving a drier, chewier product. Use your thermometer religiously and pull the steak earlier than feels comfortable. You'll be glad you did.

Mistake 4: Cutting Immediately After Cooking

Resting wagyu is non-negotiable. When the steak is removed from heat, the muscle fibers are still contracted and the internal juices are concentrated near the center. Resting for 5–8 minutes allows the fibers to relax and the juices — heavily enriched with rendered wagyu fat — to redistribute throughout the entire cut. Cutting too early causes this precious liquid to pour out onto the cutting board rather than remaining in the meat.

Mistake 5: Underseasoning or Overseasoning

Both extremes hurt wagyu. Underseasoning leaves it tasting flat, since even the most extraordinary marbling needs salt to amplify its flavors. Overseasoning masks the very nuances you're paying for. Stick to kosher salt and freshly cracked pepper, applied at the right times, and consider fleur de sel as a finishing salt for the most premium cuts. This minimalist approach consistently produces the best results.

Advanced Techniques: Sous Vide Wagyu and Other Precision Methods

For home cooks who want maximum precision in achieving the ideal wagyu doneness temperature, sous vide cooking offers unparalleled control. In sous vide, the wagyu steak is vacuum-sealed and cooked in a temperature-controlled water bath for an extended period — typically 1–4 hours at exactly 129°F for medium-rare. Because the water bath never exceeds the target temperature, it's impossible to overcook the steak. Once the bath time is complete, the steak is quickly seared in a screaming-hot cast iron pan for 30–45 seconds per side to build the crust.

The result of sous vide wagyu is extraordinary uniformity — the entire interior of the steak is edge-to-edge the same perfect medium-rare, with no gray band of overcooked meat beneath the surface. The wagyu searing technique in the finishing sear is abbreviated but critical: because the steak is already at serving temperature, the sear must be fast and violent to build crust without raising the interior temperature significantly. Many cooks lightly pat the surface dry with paper towels after removing from the vacuum bag, to ensure the best possible crust formation during the final sear.

For those who prefer a more traditional approach but still want precision, consider using an oven set to 250°F as part of the reverse sear method discussed earlier — this is essentially the oven-based equivalent of sous vide and doesn't require any special equipment beyond a reliable probe thermometer.

If you're looking to explore other lean, nutrient-dense proteins using precision techniques, our grass-fed lamb and heritage pork collections both respond beautifully to sous vide treatment. And for those interested in ground wagyu burgers, the same principles apply — cook over medium-high rather than high heat, and don't press the patty down during cooking, as this forces out the rendered fat that makes a wagyu burger so exceptional.

Frequently Asked Questions

Q: What is the best internal temperature for cooking wagyu beef?

A: The optimal wagyu doneness temperature is medium-rare, which means pulling your steak off the heat at 125–130°F and allowing carryover cooking to bring it to a final resting temperature of 130–135°F. At Beck & Bulow, we always recommend using a quality instant-read thermometer rather than relying on touch tests, especially when working with premium wagyu. Cooking beyond medium (145°F) causes significant fat loss and diminishes the very qualities that make wagyu beef worth the investment.

Q: Do I need to add oil to the pan when cooking wagyu?

A: No — this is one of the most important distinctions when learning how to cook wagyu beef. Because wagyu's extraordinary marbling begins rendering wagyu fat almost immediately upon contact with a hot surface, the steak generates its own cooking fat. Adding oil or butter to the pan before cooking creates unnecessary excess fat and can actually interfere with crust formation. Beck & Bulow recommends a dry, preheated cast iron pan for the best sear possible.

Q: How is cooking American wagyu different from Japanese full-blood wagyu?

A: American wagyu crossbreeds have slightly firmer fat and a more familiar beef flavor profile, giving you a slightly wider window of error during the wagyu searing technique. Full-blood Japanese wagyu, which Beck & Bulow sources with pride, has dramatically denser marbling and lower-melting-point fat. It's often best enjoyed sliced thinly and cooked for only 20–30 seconds per side in the teppanyaki style, rather than cooked as a thick conventional steak. The experience is closer to a fat-rich luxury bite than a traditional steak dinner.

Q: Can I cook wagyu on a grill?

A: You can, but it requires more attention than pan cooking. The high fat content of wagyu means flare-ups are common on gas or charcoal grills. If grilling, use a two-zone setup — sear over direct high heat for 60–90 seconds per side, then move to the indirect zone to finish to your target wagyu doneness temperature. Many Beck & Bulow customers find that grill grates can also cause the rendered fat to drip away rather than basting the steak, which is one reason pan cooking is generally preferred for maximizing wagyu's full flavor potential.

Q: How should I season wagyu beef?

A: Minimalism is key when cooking wagyu steak. Beck & Bulow recommends kosher salt applied 30–40 minutes before cooking and freshly cracked black pepper applied just before the steak hits the pan. For full-blood Japanese wagyu, even simpler is better — many connoisseurs use only fleur de sel applied after cooking. Avoid marinades, rubs, and heavy spice applications that overwhelm wagyu's naturally complex fat flavors. The steak should taste like itself, elevated slightly by salt's ability to amplify savory notes.

Q: How do I thaw wagyu beef properly?

A: Always thaw Beck & Bulow wagyu in the refrigerator for 24–48 hours — never in the microwave or under cold running water. These rapid methods thaw unevenly and can partially begin cooking the exterior layers of fat, which compromises both texture and flavor. Once thawed, remove the steak from the refrigerator 30–45 minutes before cooking and allow it to come to room temperature. This tempering step is especially important for wagyu beef given its low-melting-point fat and the need for even heat distribution during cooking.

Q: What's the best pan for wagyu searing technique?

A: A heavy cast iron skillet is the ideal choice for the wagyu searing technique at home. Cast iron retains and distributes heat evenly, creates exceptional surface temperatures for crust formation, and is durable enough to handle the aggressive sear wagyu requires. Carbon steel is an excellent second option. Avoid nonstick pans — they can't achieve the surface temperatures needed for proper browning, and the coating can be damaged by the high heat required. At Beck & Bulow, we consider a quality cast iron pan as essential equipment for anyone serious about how to cook wagyu beef.

Q: Is sous vide a good method for cooking wagyu?

A: Absolutely — sous vide is one of the best precision methods for achieving a perfect wagyu doneness temperature with absolute consistency. Set your water bath to 129°F for medium-rare and cook for 1–2 hours depending on thickness. Finish with a 30–45 second sear per side in a screaming-hot cast iron pan. The edge-to-edge uniformity you achieve with sous vide makes it particularly valuable for thick-cut wagyu where maintaining consistent internal temperature throughout the cut is challenging with traditional searing methods.

Q: How long should I rest wagyu after cooking?

A: Rest wagyu for a minimum of 5 minutes and ideally 8 minutes after removing from heat, tented loosely with foil. This resting period allows carryover cooking to complete and the muscle fibers to relax, redistributing the rendered fat and juices throughout the cut. Cutting too early causes this precious liquid — which carries much of wagyu's distinctive flavor — to pour out onto the cutting board. Beck & Bulow always emphasizes that resting is not optional for wagyu beef; it's a fundamental step in the cooking process that directly affects the final eating experience.

Q: Can I use wagyu for burgers and ground beef applications?

A: Yes — and Beck & Bulow's ground wagyu burger options are exceptional. Ground wagyu makes the most extraordinary burgers because the fat content keeps the patty incredibly moist and flavorful without any added fat. Cook over medium-high heat rather than high — a wagyu burger doesn't need the same extreme searing temperature as a whole steak. Never press the patty with a spatula during cooking, as this forces out the rendered fat that makes a wagyu burger so superior. Target 135–140°F for medium-rare to medium, and expect significantly more rendered fat in the pan than with conventional ground beef.

Citations and Sources

1. Motoyama, M., Sasaki, K., & Watanabe, A. (2016). "Wagyu and the factors contributing to its beef quality: A Japanese industry overview." Meat Science, 120, 10–18. https://doi.org/10.1016/j.meatsci.2016.04.026

2. Smith, S.B., & Gotoh, T. (2020). "Lipid metabolism in adipose tissue and muscle of Wagyu cattle." Animal Science Journal, 91(1), e13350. https://doi.org/10.1111/asj.13350

3. USDA Agricultural Marketing Service. (2023). "United States Standards for Grades of Carcass Beef." U.S. Department of Agriculture. https://www.ams.usda.gov/grades-standards/beef

4. López-Alt, J.K. (2015). The Food Lab: Better Home Cooking Through Science. W.W. Norton & Company. (Chapters on steak cookery, Maillard reaction, and reverse sear methodology.)

5. American Wagyu Association. (2023). "About Wagyu Beef: Breed History and Marbling Standards." American Wagyu Association. https://www.wagyu.org/breed-info/what-is-wagyu/

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