Shirasawa, the hometown of Sawahime Brewery, is located north of Tōkyō in Tochigi Prefecture. Shirasawa-juku was a post-town along Ōshū Kaidō (奥州街道), an ancient route that connected Edo (modern-day Tōkyō) with Mutsu Province in northern Japan. Shirasawa is known for its excellent water quality and its water wheels used since ancient times. Inoue Seikichi Co., Ltd., the company behind the Sawahime brand, uses this fertile soil and abundant water resources to produce sake rooted in the region.