Our story

Japan’s original energy drink was born 1,300 years ago. We have remade it for the modern era. The oldest record of Amazake is 720 AD. A fermented rice drink that was served to recover the body at harvest festivals. In the 18th century, street vendors walked the summer streets of Edo, delivering "Chilled Amazake" to tired craftsmen and families. The people of Edo called it "Summer IV (drip)." A natural balance of glucose, amino acids, citric acid, and B-complex vitamins—it was there even before anyone called it "functional."

KOJIPOP is that drink, remade for today. The same old wisdom. The same authentic recovery. This time, in a can that makes you want to open it.

For Japanese people, rice was not just a staple food. It was used as currency, offered to the gods, and a bountiful harvest meant the prosperity of the nation itself. J

apanese people did not just eat that rice; they learned to transform it. Using a microscopic organism—Koji-kin (Koji mold)—they drew out the potential sleeping within a single grain of rice. Miso, soy sauce, sake, Amazake. All of Japan's world-class fermentation culture begins with the encounter between that tiny microbe and rice.

Amazake is "drinking wisdom" that Japanese people have nurtured over centuries.

However, Koizumi thought: This wisdom should be able to reach more people. Redefining the power generated by rice-koji fermentation into a can that everyone wants to pick up.

That is KOJIPOP—an attempt to release the Japanese spirit into the modern age.

We head to the world carrying 1,300 years of fermentation wisdom. Through KOJIPOP, we bring the true power of Koji—the power to recover, to adjust, and to start again—to a new daily life that crosses borders.

Making Koji a global standard.