Table of Contents
- 1. A Universal 烧肉 Challenge: Why is 牛内脏 (牛内脏) So Difficult to Grill?
- 2. The #1 Favorite Cut “大肠” (Large Intestine) and Our Obsession with Fresh 和牛 牛内脏
- 3. Is “Skin-Side First” a Myth? The Pro Golden Rule: “Cook the Fat Side First”
- 4. Crisp Texture and Sweetness: Premium “Kamimino” (1st Stomach) and Prep Craftsmanship
- 5. Butterfly Cuts and Fine Score Cuts: The Secret to Creating Perfectly Tender 牛内脏
- 6. Gentle Heat Over 纪州备长炭: The Art of Grilling Kamimino Without Toughening the Fibers
- 7. Born from Burnt Salt 牛内脏: The Origin Story of 黑5’s Signature “Full-Attend Style”
- 8. “Delicious! What is This?!” How Customer Amazement Established 黑5’s Grilling Pride
- 9. Comparison: 3 Key Differences Between Self-Grilling 牛内脏 and 黑5’s Pro Full-Attend Style
- 10. Conclusion: Enjoy the Ultimate Juicy 牛内脏 at 黑5 Tonight
Hello everyone, this is Sondo from 黑5.

When you visit a 烧肉 restaurant, finish your cuts of 牛五花, 牛里脊, and 横膈膜, and decide to order fresh 牛内脏 (牛内脏) to end the meal, how do you usually grill it? Have you ever had fat drip into the coals, starting a flare-up that charred the meat black? Or perhaps you kept rolling the 牛内脏 around the grate, only to find all the fat melted away, leaving a tough, rubbery piece of skin?
牛内脏 contains complex muscle structures and fat layers compared to standard muscle meats (like 牛里脊 or rib cuts), making it one of the most challenging cuts to cook properly. However, when you understand the unique traits of each cut, master professional cleaning and scoring prep, and apply the correct heat control, 牛内脏 transforms into a tender, juicy delicacy bursting with flavor. Today, I would like to explain the secrets behind popular 牛内脏 cuts like “大肠” and “Kamimino,” our prep techniques, the golden rule of fat-first grilling, and the memorable story of how 黑5’s signature “full-attend style” (table-side grilling service) was born.
1. A Universal 烧肉 Challenge: Why is 牛内脏 (牛内脏) So Difficult to Grill?

First, why is 牛内脏 so much more difficult to grill than standard cuts of beef?
Standard meats like 牛五花 or 横膈膜 feature muscle and fat blended together evenly, making them easy to cook by searing both sides until the center warms. However, intestine cuts like 大肠 consist of two completely different layers attached back-to-back: a firm, chewy muscle skin layer and a rich, melting fat layer.
If you roll this two-layered meat randomly across the grill, the fat melts and drips onto the coals, sparking flare-ups that scorch the surface black. If you move it to the edge of the grill out of fear, the skin layer fails to cook properly, leaving a rubbery, unchewable texture. The difficulty of grilling 牛内脏 lies in rendering the fat sweet and fragrant without burning it, while simultaneously applying enough heat to soften the firm skin tissue.
2. The #1 Favorite Cut “大肠” (Large Intestine) and Our Obsession with Fresh 和牛 牛内脏

Among all 牛内脏 cuts, the undisputed favorite is “大肠” (large intestine). It takes its name from the striped (shima) muscle pattern visible on its outer surface.
The appeal of 大肠 lies in its thick, pleasantly chewy skin combined with a burst of sweet, savory fat. Compared to small intestine cuts (Hoso), 大肠 features a firmer body and a clean fat profile, making it a favorite for 牛内脏 connoisseurs.
At 黑5, we source exclusively fresh domestic 和牛 牛内脏 from trusted suppliers. While imported 牛内脏 can lack fat depth and carry undesirable odors, fresh 和牛 大肠 delivers pure, sweet fat with zero odor. On the day of delivery, our chefs hand-clean every piece, trimming away excess fat while deliberately leaving the flavor-rich fat intact. This precise hand trimming is the first step toward creating non-greasy, exquisite 牛内脏.
3. Is “Skin-Side First” a Myth? The Pro Golden Rule: “Cook the Fat Side First”

Now, let us share a pro technique that overturns common 烧肉 beliefs. Many guides claim you should place 大肠 skin-side down first to heat the tough skin. However, according to 黑5’s trained chefs, this is a major mistake that ruins the meat’s moisture and flavor.
黑5’s golden rule for grilling 大肠 is: “Place the fat side down first, and sear the fat thoroughly.”
Unlike muscle fat, intestine fat does not harden under heat. Placing the fat side down over medium 炭火 heat allows the fat to sear slowly until it turns golden brown. Searing the fat renders away excess grease, concentrating its sweet umami. Once the fat is caramelized, turn the piece over and sear the skin side for only about 1 minute.
If you grill the skin side for too long, the muscle proteins contract rapidly, drying out the skin and rendering it rubbery. Searing the fat thoroughly and finishing the skin quickly yields a crispy exterior, a tender bite, and a burst of savory juice.
4. Crisp Texture and Sweetness: Premium “Kamimino” (1st Stomach) and Prep Craftsmanship

Another favorite 牛内脏 cut alongside 大肠 is “Kamimino” (1st stomach).
A cow possesses four stomach compartments, and the first and largest is the “牛肚.” Because cows chew their cud continuously, the 牛肚 consists of thick, active muscle tissue. Standard 牛肚 can be dense and difficult to chew.
However, 黑5 serves “Kamimino”—the thickest, finest-grained section near the stomach entrance. Kamimino is significantly softer and cleaner than standard 牛肚. It offers a crisp, satisfying bite and a light, clean sweetness as you chew.
5. Butterfly Cuts and Fine Score Cuts: The Secret to Creating Perfectly Tender 牛内脏

Even with high-quality 和牛 Kamimino, simply dicing and grilling it would cause the muscle fibers to shrink and harden. In the 黑5 kitchen, our chefs perform precise knife prep before serving.
When portioning fresh Kamimino, our chefs slice into the center of each thick piece and open it flat, creating a butterfly cut (観音開き) similar to preparing scallops. This evens out the thickness, establishing a flat surface for uniform heating.
Next, our chefs slice fine, crosshatched score cuts (隠し包丁) across the surface at millimeter intervals. Controlling the depth and angle of each cut severs the tough muscle fibers, ensuring the meat cooks quickly and remains tender. Heat from the 纪州备长炭 炭火 penetrates these fine cuts, cooking the meat instantly before it can toughen.
6. Gentle Heat Over 纪州备长炭: The Art of Grilling Kamimino Without Toughening the Fibers

Even with butterfly score cuts, Kamimino requires delicate fire control, as overcooking causes it to lose moisture and harden.
黑5’s grilling philosophy for Kamimino is: “Heat the 牛肚 so gently that it doesn’t even notice it’s being cooked.”
Rather than searing it over aggressive flames, we turn the scored Kamimino frequently over 纪州备长炭 heat for about 1 minute. The fine score cuts allow heat to reach the center almost instantly, leaving the outside crisp while preserving a tender, juicy interior. Enjoying it with salt and lemon or garlic soy sauce highlights its crisp texture and subtle sweetness.
7. Born from Burnt Salt 牛内脏: The Origin Story of 黑5’s Signature “Full-Attend Style”

While mastering the fat-first rule for 大肠 and gentle turns for Kamimino produces incredible results, doing so yourself over hot 炭火 can be difficult during a relaxed meal. This is why 黑5 staff grills all meat at your table in our signature “full-attend style.”
This service was not created as a corporate policy, but grew out of a real incident involving burnt salt 牛内脏 at our original shop.
In 2008, when 黑5 opened its tiny 7-tsubo (23 sq meter) location in 池袋, the owner noticed guests struggling to grill fatty salt 牛内脏. The fat caught fire, flare-ups filled the air with smoke, and the meat charred black. Unable to watch good meat go to waste, the owner stepped in, saying, “Wait! You can’t grill it like that!” He picked up the tongs and grilled the 牛内脏 for them at their table.
8. “Delicious! What is This?!” How Customer Amazement Established 黑5’s Grilling Pride

The guests were initially surprised by the owner stepping in, but their reaction changed completely upon taking their first bite of the professionally seared 牛内脏. Their eyes widened, and they exclaimed, “Delicious! What is this?!”
The contrast between the burnt piece they had tried earlier and the tender, juicy 牛内脏 prepared by the owner surprised the entire dining room. Nearby tables quickly asked, “Excuse me! Could you grill ours too?” Soon, the owner was running between tables grilling meat for every guest in the restaurant.
Seeing guests smile with excitement, the owner realized: “No matter how good the meat is, grilling determines whether its value is zero or 120 points. This table-side service is 黑5’s true calling.” From that evening, our full-attend service became 黑5’s signature tradition, preserved across all our locations today.
9. Comparison: 3 Key Differences Between Self-Grilling 牛内脏 and 黑5’s Pro Full-Attend Style
3 Differences Between Self-Grilling 牛内脏 and 黑5’s Pro Full-Attend Style
1. Hand Preparation and Prep Skill:
- Standard Shops: 牛内脏 is sliced directly without custom scoring, leaving excess fat or tough fibers that make 牛肚 difficult to chew.
- 黑5: Fresh 和牛 牛内脏 is hand-cleaned daily, leaving flavor-rich fat on 大肠 and applying butterfly score cuts to Kamimino for tenderness.
2. Heat Orientation and Timing:
- Standard Shops: Cooking skin-side first dries out the meat, while unmanaged fat causes flare-ups and charred exteriors.
- 黑5: 大肠 is cooked fat-side first with a quick 1-minute skin sear, while Kamimino is turned gently for 1 minute over 纪州备长炭 heat.
3. Dining Comfort and Experience:
- Standard Shops: Guests must constantly monitor flare-ups and guess when the 牛内脏 is ready, risking overcooking.
- 黑5: Trained staff grills every piece at your table, eliminating flare-ups and serving meat at its peak moment of flavor.
10. Conclusion: Enjoy the Ultimate Juicy 牛内脏 at 黑5 Tonight
If you have ever found 牛内脏 difficult to grill or chew, we invite you to experience 黑5’s prepared 和牛 牛内脏. Professional knife scoring combined with table-side 纪州备长炭 grilling will change your perspective on 牛内脏.
Enjoy the sweet fat of our 大肠, the crisp bite of Kamimino, and the warm hospitality of our table-side grilling service.
Please visit 黑5 Honten, Higashiguchi, or 歌舞伎町店 tonight. We look forward to serving you our signature 和牛 牛内脏 alongside our selection of meats and drinks.

- 炭火 烧肉 黑5 Honten
1F Nishi-池袋 Bldg, 2-46-3 Nishi-池袋, Toshima-ku, Tokyo / 5 min walk from JR 池袋 Station - 炭火 烧肉 黑5 Higashiguchi
1F Tsukiji Bldg, 1-42-16 Higashi-池袋, Toshima-ku, Tokyo / 3 min walk from JR 池袋 Station East Exit - 炭火 烧肉 黑5 歌舞伎町店
1F Sankyo Akagawa Bldg, 2-21-4 歌舞伎町店, Shinjuku-ku, Tokyo

