We had the opportunity to visit Ginza Shabu-Shabu “Koubai,” the celebrated Tokyo dining concept making its Thailand debut at Dusit Central Park. Known for their flagship locations at Ginza SIX and Tokyo Solamachi®, KOUBAI brings this renowned dining experience to Bangkok
KOUBAI is known for its focus on the rare Akaushi Beef, the “phantom wagyu” that makes up just 0.6% of Japan’s beef supply. Sourced directly from Kosei Ranch in Kumamoto and GI-certified alongside Kobe and Matsusaka, it’s a product they treat with great respect. Their Japanese head chef and management team ensure every dish reflects the quality, clarity, and warm omotenashi the concept is built on.
Akaushi delivers indulgence without overwhelming richness — luxurious yet balanced. – Georges H Simpson’s Meat.
We learned how Akaushi cattle also help preserve Aso’s ancient grasslands — a thoughtful sustainability story behind the exceptional flavor. As part of the Umenohana Group, with over 280 restaurants worldwide, KOUBAI brings something truly special to Bangkok.
Now, let us show you what we ate and experienced during our visit.
We started with a selection of assorted appetizers and the Aka-ushi Shabu Salad. It was a good way to ease into the meal, giving us a first look at the flavours and style of the kitchen before moving on to the main dishes.
The next dish that arrived was the Seared Aka-ushi Beef Tartare. It stood out immediately. This was, without question, the best beef tartare I’ve ever had—and I’ve tried quite a few over the years. The seasoning, texture, and balance were all spot-on, and it set a high bar for the rest of the meal.
If you’re not into meat dishes, this is the moment to stop reading. But for anyone who appreciates a well-prepared cut, this is Koubai’s signature: the Aka-ushi Hoba-yaki Salt Crust Roast. They serve it simply—just the plate and the meat—letting the quality speak for itself. The meat was exceptionally tender and consistently juicy, showing clearly why this dish is one of their defining plates.
If you’ve read our previous articles, you might remember that I’ve been an avid shabu-shabu fan for years. But over time, a few restaurants have made me rethink what really makes a great shabu-shabu experience — and Koubai is one of them. Their Aka-ushi Shabu-shabu Course includes four different cuts of Aka-ushi beef.
Moving on to more meat, the next course was Sukiyaki, presented in two distinct styles. Both styles were seared on a hot plate with a sauce that brings out the full flavor of the dish. This traditional preparation was my favorite part of the course, highlighting the richness and quality of the meat in a simple, satisfying way.
By the time we reached the dessert course, we were already quite full—but as everyone knows, dessert seems to have its own space. The Homemade White Warabi Mochi was exactly what was needed after a heavy meal. Light and delicate, it offered a perfect introduction to the subtle taste and texture of mochi.
Now I want to touch on their Japanese wine and sake selection. Among the bottles we tried, two stood out for me. The Domaine Kuheiji Coteaux Bourguignons, a blend of Pinot Noir and Gamay, was particularly notable. On the sake side, the Kamoshibito Kuheiji 醸し人九平次 Human was an excellent choice. Both selections complemented the menu well and enhanced the flavors of the dishes throughout the meal.
We had the opportunity to meet Chef Masaji Iwahashi and see him in action. Chef Iwahashi began his culinary journey at the age of 18 at the New Otani Hotel in Hakata, where he trained in traditional Japanese cuisine. Over the years, he has refined his skills, with a particular focus on kaiseki—the multi-course style that emphasizes seasonal ingredients and precise techniques.
After more than 25 years with the Umenohana group, Chef Iwahashi brings decades of experience and dedication to KOUBAI as head chef. Specializing in Akaushi beef, KOUBAI opens its first location outside Japan at Dusit Central Park this October, offering an authentic shabu-shabu and sukiyaki dining experience.
Ambiance and Interior
KOUBAI’s interior is designed for a relaxed yet refined experience, making it an ideal place to enjoy a meal with friends. Warm lighting, clean lines, and thoughtfully arranged seating create a welcoming atmosphere where the focus is on both the food and the shared experience at the table.
I’m hungry. Where is it?
Keep up to date with their menus and promos. by following their official Facebook page or Instagram page.
Address: Unit 515-517, Dusit Central Park, 86 Rama IV Rd, Si Lom, Bang Rak, Bangkok 10500, Thailand.
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