PURPOSE: To obtain unpolished rice or polished rice for Japanese malted rice, wholly free from unevenness, capable of uniformly increasing water content- absorbing amount by boiling treatment and useful for producing Japanese malted rice, sweet rice wine for seasoning, etc., by subjecting the unpolished rice or polished rice to steam heating under specific conditions. CONSTITUTION: This unpolished rice or polished rice for Japanese malted rice is obtained by subjecting the unpolished rice or polished rice to steam heating at 110-130 deg.C and 100% relative humidity for 5-60min Furthermore, hard rice is preferably used as the unpolished rice or polished rice for Japanese malted rice and Japanese malted rice is produced by using unpolished rice or polished rice for Japanese malted rice and further, sweet rice wine for seasoning is preferably produced using the rice.
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