FamilyMart, one of Japan’s leading convenience store (konbini) chains, is set to release a new addition to its popular winter menu: the steamed bun (Chuman). Starting February 17, 2026, the highly anticipated “Premium Black Pork Bun: Spicy Miso Flavor” will be available at approximately 16,400 stores across Japan.
Priced at 223 yen (240 yen including tax, approx. $1.60), this is the legitimate evolution of the “Premium Black Pork Bun” series—a monster hit that has surpassed 80 million units in total sales.
One Sold Every Two Seconds! The Peak of Japanese Konbini Steamed Buns: “Premium Black Pork Bun”
In Japan, when winter arrives, convenience store counters are lined with “Chuman” (steamed buns)—warm, freshly steamed snacks. Among them, FamilyMart’s “Premium Black Pork Bun” (Goku-uma Kurobuta-man) reigns as the undisputed king.
Since its launch in 2019, its overwhelming quality has captivated fans, and in 2024, it was awarded the Grand Prix—the highest honor—at the “Japan Food Selection,” which recognizes excellence in Japanese food products.
The key features that define this series are:
- A luxurious 50% filling ratio: It packs significantly more filling than standard meat buns.
- 100% Domestic Black Pork: Uses only premium Japanese black pork and domestic onions.
- Specialized Dough: A chewy, elastic dough specifically designed to hold in every drop of the overflowing meat juices.
The reason for its popularity is a flavor profile that transcends the typical “convenience store” level, rivaling that of specialty restaurants.
Born from Fan Requests: The Addictive “Phase 3” Flavor
Now in its seventh year, the series actively incorporates fan feedback. Based on a survey of approximately 2,000 people conducted in January 2025, FamilyMart has been ranking and commercializing the flavors fans “want to try most.”
So far, the #1 ranked “Curry” and #2 ranked “Teriyaki” flavors have been released, both becoming major hits. Now, the #3 ranked “Spicy Miso” finally makes its debut. This new release is the culmination of the series, responding directly to fan demands.
A Symphony of Umami! The Secrets Behind the “Special Spicy Miso Sauce”
The defining feature of the “Premium Black Pork Bun: Spicy Miso” is the rich “Special Spicy Miso Sauce” at the center of the filling. This sauce is crafted with meticulous attention to detail:
- Perfect Balance: A blend of miso, chili peppers, garlic, and ginger.
- Deep Aroma: Uses roasted miso to provide a unique smokiness and deep richness.
- Hidden Ingredient: “Soy Sauce Mash” (Shoyu Moromi—the fermented byproduct of soy sauce production) is added for complex layers of umami.
The sweetness of the black pork and the juiciness of the onions combined with the punchy spices and rich miso create a “gradual heat” that keeps you coming back for more, from the first bite to the last.
A “Three-Layer” Structure for the Ultimate Eating Experience
This new release isn’t just a simple flavor change. It features a triple-layer structure that creates perfect harmony:
- First Layer: “Chewy Dough” with the aroma and elasticity of high-quality wheat.
- Second Layer: “Juicy Meat Filling” bursting with the texture of coarsely ground black pork and the sweetness of onions.
- Third Layer: The addictive “Special Spicy Miso Sauce” that flows from the center.
While it is substantial and satisfying, the design ensures that the natural sweetness of the ingredients shines through. One bite, and you’ll be surprised by how addictive it is.
Product Lineup and Details
The following lineup will be available at FamilyMart stores nationwide starting February 17, 2026.
The Rising Star: Premium Black Pork Bun (Spicy Miso)
- Release Date: Tuesday, February 17, 2026
- Price: 223 yen (240 yen including tax, approx. $1.60)
- Features: A 100% domestic black pork filling enclosing a special sauce flavored with garlic and ginger. The contrast between spice and sweetness is masterful.
The Undisputed Classic: Premium Black Pork Bun
- Price: 223 yen (240 yen including tax, approx. $1.60)
- Features: The legend that started it all with 80 million sales. A Grand Prix-winning menu item featuring the hearty texture of coarsely ground meat and the natural sweetness of onions.
Buying a freshly steamed bun from a konbini counter and taking a bite in the cold winter air is one of the “small happinesses” of daily life in Japan. When you visit Japan, be sure to experience this “ultimate masterpiece,” made without compromise in ingredients or texture, while it’s still piping hot.
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