Although there are several branched varieties, such as Tajima goriki, Tottori Prefecture and the Tottori Japanese Sake Association have endeavored to keep the main lines from leaving the prefecture in order to prevent the power of the variety from being degraded by becoming widespread as 'rare sakamai.'
但馬強力など枝種は少数あるが、鳥取県ならびに同県酒造組合としては、「幻の酒米」として広範囲に普及することで品種の力が弱くなることを避け、主系統は県内から外に出ないようにしている。