From the popular “7-Café Smoothie” series at Japanese convenience store 7-Eleven, a new flavor has arrived that lets you fully enjoy the taste of autumn. The “Yaki-imo Milk Smoothie,” available in limited quantities at stores nationwide in Japan starting Tuesday, November 11, 2025, boasts a rich flavor that feels just like drinking a dessert.
From autumn to winter in Japan, a beloved, classic snack is “yaki-imo” (baked sweet potato). Sweet potatoes, slow-cooked over stones until they become as sweet as honey, are a familiar and cherished symbol of the colder seasons. The greatest appeal of this new product is the ability to easily enjoy that traditional Japanese taste in the form of a modern smoothie.
The “Phantom Smoothie” Finally Goes Nationwide
This product actually created a huge buzz on social media as a “phantom smoothie” during its test-marketing phase in select areas. In response to its popularity, it has now been eagerly awaited and officially released nationwide across Japan.
7-Eleven’s “7-Café Smoothie” features a unique system where customers purchase a cup containing frozen fruits and vegetables at the register and then use a special in-store machine to make the smoothie themselves. Because each one is made fresh to order, you can always enjoy a vibrant, fresh taste, which is a key reason for its popularity. With the “Yaki-imo Milk Smoothie,” you can experience that same just-made deliciousness on the spot.
You can check the official website here: https://www.sej.co.jp/products/smoothie.html
Yaki-imo Milk Smoothie Product Details
Product Name: Yaki-imo Milk Smoothie
Price: 389 JPY (420.12 JPY with tax)
Release Date: Sequentially from Tuesday, November 11, 2025
Sales Area: Nationwide in Japan
Note: This is a limited-quantity item and will no longer be available once sold out.
Made with the Premium “Beni Tenshi” Sweet Potato
The deciding factor in this smoothie’s flavor is its star ingredient, the “Beni Tenshi” sweet potato.
“Beni Tenshi” is a branded sweet potato from Calbee Kaitsuka Sweet Potato Inc. and is classified as the “Beni Haruka” variety. Through a unique storage technology cultivated over many years of experience, these potatoes are slowly aged in a cellar with thoroughly controlled temperature and humidity, resulting in an incredible sweetness and a smooth texture. Its deliciousness has been featured in various media, making it one of the most well-known sweet potatoes in Japan.
This smoothie luxuriously uses this “Beni Tenshi” in two ways: as diced, quick-frozen baked sweet potato and as puree-based ice cubes that concentrate the baked sweet potato flavor.
This allows you to fully enjoy the sweet potato’s naturally rich sweetness, roasted aroma, and unique texture in a drinkable format.
The Secret to Its Deliciousness Lies in Unique Technology
Behind the deliciousness of the “7-Café Smoothie” is 7-Eleven’s proprietary technology.
First, by flash-freezing the ingredients, their nutrition, flavor, and freshness are locked into the cup without being compromised. Unlike typical smoothies that use ice, this one uses ice cubes made from puree, which prevents the flavor from becoming diluted and allows you to enjoy the rich taste of the ingredients to the very end.
Furthermore, the special in-store machine has had its blending method specially adjusted just for this “Yaki-imo Milk Smoothie.” It achieves an exquisite texture that is smooth on the palate while allowing you to subtly feel the fibrousness and texture of the Beni Tenshi potato. For a short break in your busy day or as a sweet treat for yourself, why not try this special drink that’s unique to the season?
More detailed information about the smoothie’s ingredients and the machine is introduced in these videos:
※Price and availability may vary by store.
※Please check here for details on sales regions: https://www.sej.co.jp/products/area/
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