Maruya Haccho Miso is one of the historic producers of Haccho Miso in Okazaki, preserving traditional methods that have been passed down for generations. During the brewery visit, guests step inside the miso storehouses to observe the production process up close, where only soybeans and salt are used and the miso is aged slowly in large wooden vats under massive stone weights. The distinctive atmosphere—filled with the aroma of fermentation and the sight of timeworn barrels—offers rare insight into Japan’s long-standing fermentation culture. Through this visit, guests gain a deeper understanding of how patience, craftsmanship, and natural processes come together to create the deep, robust flavor that defines authentic Haccho Miso.