Aïgamo's technique involves raising a colony of ducks within the rice paddy, animals that grow and live in situ, feeding on insects and preventing the growth of weeds. Their droppings serve as fertilizer and they naturally soak the soil by searching for food. Thanks to their intervention, the rice fields are kept healthy, an agro-ecological technique which makes it possible to avoid any intervention of the man. The rice obtained is called "Genmaï". Its use in sake production is extremely rare and Kameman Genmai Shu is certainly one of the most successful in this microcosm.

It is a limpid sake, golden in color with coppery highlights. The nose is woody, it clearly evokes honey, roasted cereals and dried fruits (apricot, date, banana), on a woody background. The palate is creamy and fruity. It evolves on more vivid notes of citrus fruits and one finds the fruits presumed in the nose, the apple, the pear. He becomes lively and warm. The woody notes are more expressive by recalling almost a whiskey. A sake very homogeneous and lively. Beautiful variations around the fruit and acidity. Complex notes of honey, honeydew and hay appear on a long, lively finish, evoking straw wine, with a touch of bitterness.