
Japanese convenience stores are a place where unique and innovative snack foods constantly appear. On Monday, January 26, 2026, Kuriyama Rice Crackers, a famous rice cracker manufacturer, will release a new challenging product.It’s the long-awaited “Ume” flavor in their “Probably Japan’s Hardest and Most Addictive Arare” series. This product will be available for early purchase at convenience stores nationwide.
True to its name, this popular series known for its extremely hard texture now features the refreshing, traditional Japanese flavor of “Ume” (Japanese plum).
A Texture That Resonates in Your Brain and the Lingering Sourness of Plum
The greatest appeal of this new snack lies in the brilliant fusion of its crispy, extremely hard texture and the refreshing sourness of plum. “Arare” is a type of traditional Japanese small rice cracker made from glutinous rice.
Take a bite, and you’ll first be surprised by its hard crunch. But it’s not just hard. The more you chew, the more the ume flavor spreads in your mouth. Ume is a traditional Japanese fruit known for its salty and sour taste. The combination of the rice’s nutty aroma and the ume’s tartness creates an exquisite harmony.
It’s especially recommended for those who love ume flavor. This recurring taste is the secret that makes many people “addicted.”
The character “Nagi-yan” depicted on the package, with its sour-looking expression, also captures this product’s unique character.
Product Details
Product Name: Probably Japan’s Hardest Rice Cracker (Plum Flavor)
Release Date: January 26, 2026 (Monday)
Net Weight: 40g (1.41 oz)
Where to Buy: Convenience stores nationwide (excluding some stores), and https://befco-shop.jp/ (Japanese Link)
The 40g size is perfect for a snack or light appetizer. If you can’t find it at your local store, you can also check the online shop.
A Popular Series Born from Student Ideas
The birth of this “Probably Japan’s Hardest and Most Addictive Arare” series has a unique background. This product originally emerged from a collaborative project with students from Kinki University in Japan in September 2023.
Combining the fresh ideas of the younger generation with the traditional techniques of a long-established rice cracker maker, this series gained many fans for its concept. This new “Plum Flavor” is the highly anticipated addition to the popular series.

Kuriyama Rice Crackers’ “Befco” Brand: Continuing Innovation
Kuriyama Rice Crackers, the maker of these unique rice crackers, is a confectionery manufacturer famous for long-selling products known to everyone in Japan, such as “Baka-uke,” “Seto Shio,” and “Hoshi Tabeyo.”
The company operates under the corporate brand “Befco,” which stands for a company (Company) running at the forefront (Frontier) of rice snacks (Beika). It continuously challenges itself to create “fun, deliciousness, and novelty,” unbound by the constraints of traditional rice snacks.

Summary
“Probably Japan’s Hardest Rice Cracker (Plum Flavor)” is perfect when you want a refreshing crunch or a mood-lifting burst of plum tartness. If you ever visit Japan, be sure to look for it at your nearest convenience store.
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