The simplified hako-koji method called toko-koji (floor koji) does not use a box but spreads the steamed rice on top of a huge counter placed in a koji culture room, where koji spores are spread on it, and it is cooled down while still on the counter as in the futa-koji method for making nihonshu.
箱麹法より、さらに簡略化された日本酒床麹法（とここうじほう）では、箱状の道具は用いず、麹室に設けられた大きな台のうえに蒸し米を広げ、そこへ麹菌を振りかけると、その台に乗せたまま日本酒蓋麹法からあとの熱を冷ます工程をおこなう。