Amazake: Japan’s Ancient Fermented Wisdom

In Japan, there is a fermented beverage that has been enjoyed for centuries to cope with the summer heat: Amazake. While it is often seen as a winter drink today, it was widely consumed during the Edo period as a nourishing drink.

In recent years, this traditional drink has regained popularity. This is because the “wisdom of fermentation,” nurtured by the Japanese people over generations, offers a gentle way to support our busy modern lives. In this column, I would like to share the traditional lifestyle wisdom distilled into a single cup of amazake. 

Often described in Japan as “a drinkable IV drip”, amazake owes its nickname to its rich nutritional profile. The fermentation process creates a balanced blend of glucose, B-complex vitamins, and essential amino acids.

There are two main types of amazake: one made from kome-koji (malted rice) and another from sake-kasu (sake lees, a byproduct of sake production). The kome-koji type is virtually alcohol-free and characterized by its natural sweetness, while the sake-lees type is rich in dietary fiber. Because of this high nutritional value, amazake has long been a natural part of daily life rather than just a specialized health food. 

My wife is one of those who has integrated this traditional wisdom into her daily routine. She used to struggle with chronic fatigue and tired-looking skin, but she decided to swap her morning coffee for a cup of amazake. A few weeks later, she happily told me about the changes: “I feel much less exhausted by the evening, and my makeup goes on so much better.”

The culture of drinking amazake adapts to the four seasons—served hot with a hint of ginger in winter to warm the core, or chilled with ice in summer to prevent heat exhaustion. It is also an essential part of Japanese traditions, such as visiting shrines at New Year or celebrating the Doll Festival (Hinamatsuri), serving as a symbol of longevity and a charm to ward off misfortune.

Whether served warm or cold, every cup reflects the fermented wisdom of the Japanese people, who have lived in harmony with nature for centuries.

If you ever have the chance to visit Japan, try a cup of amazake and experience this gentle taste of Japanese tradition for yourself.