In 'Seishu Seizo Seigi' (a detailed explanation of sake brewing), which is a textbook for sake brewing issued at the beginning of the Showa period, Kokuryo miyako was high appreciated for its ability to produce high-quality sake comparable to Kamenowo, a parent of Gohyakumangoku, and the general-purpose rice that was a parent of Yamada nishiki and used as material for sake.
また昭和初期に出版された醸造解説書「清酒製造精義」には、穀良都が、五百万石の前代にあたる亀の尾や、山田錦の前代にあたる酒の原料に使われる一般米と肩を並べる酒質を生むと評価されていた。