In the 1980s many yeasts which had strong aroma such as low acid producing yeast, high ester producing yeast and high malic acid producing yeast were produced.
1980年代には、さらに少酸性酵母、高エステル生成酵母、リンゴ酸高生産性多酸酵母といった高い香りを出す酵母が多数つくられた。