It is made with only three ingredients: rice, water, and koji, and is completely additive-free nama-moto-zukuri. The flavor changes interestingly depending on the state of maturity. When you put it in your mouth, you will feel the overwhelming umami and acidity. Although it has a strong flavor, it is light and surprisingly easy to drink. The brewer recommends storing it at room temperature. It should be kept at room temperature before and after opening the bottle. It is very resistant to environmental changes, and you can enjoy the evolution of the flavor before and after opening the bottle without deterioration. It is also interesting to enjoy a glass every day at room temperature and enjoy the homemade aging process.