Shiga

Shiga surrounds Lake Biwa, Japan's largest freshwater lake, whose basin creates a unique microclimate with relatively cold, foggy winters and consistently humid conditions ideal for koji mold cultivation. Mountain streams draining from the Ibuki and Hira ranges deliver clean, soft water that fills breweries' wells year-round. The high groundwater table and lake-influenced humidity have shaped a brewing culture known for environmental consciousness and balanced, food-friendly sake styles.