Sake conversion rate (shuka-ritsu)

The sake conversion rate (shuka-ritsu) is an indicator of the proportion of sake produced relative to the polished rice used. Specifically, it is expressed using the amount of pure alcohol obtained from 1,000 kg of polished rice, the alcohol yield ratio, or the original extract yield rate. This figure is an important indicator when evaluating the brewer's skill, the quality of the raw materials, and the efficiency of the brewing process. A high sake conversion rate is regarded as one element reflecting successful sake brewing.