Copyright 2006: B. United International Inc., All rights reserved.
The Sake Rice (sakamai) is first polished (milled). Polishing must be gentle to avoid cracking the rice kernels, and must be done slowly to avoid too much heat being generated. The quality of the rice's polishing is based on the grade of sake it will produce. More polished for a higher grade sake.
The rice powder (nuka) is washed from the polished rice. Nuka contains unfermentable acids and fats that produce undesirable flavors and cause hangovers. The kernels are then soaked to absorb water. The more the rice is polished, the less time it takes to absorb water. Time for soaking can range from one minute to overnight.
