When whole soybeans are used as raw materials, many unprocessed fats from them are separated during the preparation process, and float over moromi making a fat film as it was prescribed in the paragraph of the preparation process.
原料に丸大豆を使用する場合、仕込工程の説明のように、丸大豆には未処理の油脂が大量に含まれているため、これらの油分は仕込工程中に分離して、諸味の上に浮かんで油脂の層を作る。