ふみたろうYamamoto7号酵母純米吟醸原酒生酒YamamotoAkita...伊勢屋酒店34ふみたろうDrinking comparison of Yamamoto's No.7 yeast and No.6 yeast The #7 yeast has a sour taste to it☺️. Both are delicious🍴😆✨.... But personally, I prefer No.6 ☺️.Japanese>English