300kg of locally grown soya beans are steamed in the pot at one time in preparation for miso and soy sauce making. Made of cast iron in Showa Year 30 (1955) and in continued use today, it has been working for over 50 years. The fact that it was built on the premise to be semi-permanent yet is so sturdy, says much about the temperament of the craftsmen who made it. The moment when the steam is released from the pot when in operation is quite a spectacle.