After I had hung up the kos, the parent manjuus were still crying under the wooden rack. The kos were also screaming in pain. It was very noisy the first night, yet I had to put up with it to have food for the winter.Procedures are simple. String up the koyukkuris with iron wire, hang them at where with abundant sunlight and ventilation. Not letting them to throw up their bean paste, simply seal their mouth and peeing hole.