US Wagyu beef skirt steak SRF BMS 9+ (inside skirt)

Nice to know: Origin: Beef Outside Skirt is one of the most flavourful and traditional beef cuts. It comes from the outer part of the diaphragm and is located in the belly and flank area of the animal. Because this muscle is constantly in motion, the meat develops a distinctive fibre structure and an intense, rich beef flavour.

The underestimated butcher's cut: For a long time, Outside Skirt played only a minor role in traditional European butchery. It was often used for minced meat or slow-cooked dishes. However, butchers and meat experts already knew about its exceptional flavour, which is why it was often considered a true butcher's cut and frequently kept for personal use.

International breakthrough: Outside Skirt became widely known through American BBQ culture and Tex-Mex cuisine. It gained particular fame through dishes such as fajitas, where the meat is traditionally marinated, grilled over high heat and sliced into thin strips.

This cooking method showed that even heavily used muscles can become exceptionally tender and juicy when prepared correctly.

Today: A true hidden champion

• bold and intense flavour
• distinctive fibre structure
• excellent for marinades
• perfect for quick grilling and searing
• ideal for fajitas, steak sandwiches and wok dishes

Internal temperatures & Meat Sommelier tip 

Outside Skirt should always be cooked quickly over high heat:

• Rare: 48-50 °C (118-122 °F)
• Medium Rare (recommended): 52-54 °C (126-129 °F)
• Medium: 55-57 °C (131-135 °F)
• Well Done: above 60 °C (140 °F+) (not recommended)

Nice to know: Beef Inside Skirt, also known as the inner skirt steak, is one of the oldest and most traditional beef cuts. It comes from the diaphragm area of the animal and was once considered a true butcher's cut. The reason? Many butchers kept these highly flavourful pieces for themselves instead of selling them.

For many years, Inside Skirt remained a relatively unknown cut and was often used for minced meat or slow-cooked dishes. However, in the United States and Mexican cuisine, its full potential was discovered early on. It became especially famous in fajitas because, despite its coarse texture, it delivers an incredibly rich beef flavour.

With the rise of BBQ and grilling culture, Inside Skirt gained popularity worldwide. Today it is considered a true hidden champion among meat lovers: less famous than Ribeye or Entrecôte, but highly valued for its bold flavour, loose fibre structure and intense beef aroma.

The most important tip: cook it quickly over high heat and always slice it against the grain after cooking. This keeps the Inside Skirt exceptionally tender and juicy.

The Inside Skirt, often referred to as Kronfleisch from beef in German-speaking countries, is one of the most aromatic and at the same time most underrated cuts in beef cuisine. For a long time, this cut was mainly known among connoisseurs, butchers, and lovers of traditional cuisine. In recent years, however, Kronfleisch has experienced a renaissance and is increasingly appreciated in modern grilling and steak culture.

Its intense flavour, loose texture, and versatile preparation possibilities make the Inside Skirt a true insider tip for meat lovers. At the same time, this cut looks back on an exciting historical development, ranging from traditional farm slaughtering practices through Parisian bistro cuisine to the international BBQ scene.

In this detailed blog article, you will learn everything about the origin, history, characteristics, preparation, and culinary use of Inside Skirt, also known as Kronfleisch from beef.

The inside skirt, also known as the inner hemisphere of the diaphragm, has a long but often overrated history in meat culture. Even in traditional European peasant cuisine, this cut was used, though mostly as boiled meat or for simple dishes, as it was considered too coarse-grained for fine dining. Prime cuts like filet mignon or ribeye were clearly the focus.

The inside skirt steak experienced its real rise in popularity in North and South America. In the 19th century, it was particularly prized in the USA by butchers and laborers who had access to less sought-after cuts but knew their intense flavor. In Mexico and Argentina, the cut simultaneously became a staple of barbecue culture. It was quickly recognized there that the inside skirt, when cooked briefly at very high heat, is exceptionally juicy and aromatic.

It wasn't until the late 20th century, with the trend towards nose-to-tail eating and alternative cuts, that the inside skirt also gained recognition in Europe's upscale restaurants. Top chefs discovered it as a characterful steak with rustic charm. Today, it is considered a prime example of how taste depends not on prestige, but on origin, maturation, and preparation.