
A new flavor perfect for winter is on its way from “Mt. Rainier,” a staple brand you’re almost guaranteed to spot in the drink aisles of convenience stores and supermarkets all across Japan.
It has been announced that starting from Tuesday, December 2, 2025, the “Mt. Rainier Caffè Latte Milk Chocolat” will be released for a limited time all across Japan. As the weather turns colder, it’s a cup that promises a deep sweetness to warm both body and soul.
What is “Mt. Rainier,” the Pioneer of Chilled Cup Coffee?
While it might not be familiar to those overseas, “Mt. Rainier” is a truly iconic presence in the Japanese drink market. Launched in 1993, it was the pioneer that created the “chilled cup coffee” category—a genre of coffee beverages sold in cups from refrigerated cases.
Its convenience, offering an authentic espresso and milk taste anytime and anywhere, has made it a part of daily life for many. Now in its 33rd year, its popularity continues unabated, having astonishingly surpassed 10 billion total units sold, making it a truly beloved brand nationwide. It’s undoubtedly one of the essential items when talking about Japanese convenience store culture.
The Secret Behind its Deep Sweetness: A Blend of Two Chocolates
The most notable feature of the “Mt. Rainier Caffè Latte Milk Chocolat” is, as the name implies, its special focus on chocolate.
It uses two types of chocolate: milk chocolate and bitter chocolate. While based on the gentle sweetness of milk chocolate, the slight bitterness of the bitter chocolate adds an accent, creating a mellow sweetness with depth and complexity, rather than being one-note.
The coffee, of course, is also authentic. The manufacturer, Morinaga Milk Industry, uses coffee beans carefully selected from around the world by its own certified coffee specialists. These beans are then carefully roasted in Japan, and the espresso, extracted in-house from freshly ground beans, is luxuriously blended. This carefully crafted espresso further enhances the rich flavor of the chocolate, creating an exquisite balance.
The package design also expresses the product’s charm. It depicts two types of chocolate melting together, a design that evokes a sense of a “special treat” just by holding it. In Japan, there is a culture of enjoying a “reward time”—taking a break with a special drink like this during work or study—and this product seems perfect for such moments.
Product Details
The release date is Tuesday, December 2, 2025, and the sales area is all across Japan. You should be able to find it at your local convenience stores, supermarkets, and other retail stores.
The suggested retail price is 200 yen (excluding tax), and the content volume is 240ml. The energy per bottle is 147kcal. As it’s a product that requires refrigeration, please store it in the refrigerator after purchase.
It’s especially recommended for those who love chocolate drinks and sweet caffè lattes, as well as for anyone looking to try something new at a Japanese convenience store.
In Japan, a major characteristic of the food culture is the appearance of various limited-edition seasonal flavors. This “Mt. Rainier Caffè Latte Milk Chocolat” is one such winter delight. If you have the chance to be in Japan, why not enjoy a heartwarming moment with this special caffè latte that can only be savored during this season?
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