EH stands for Excel Human, the name of the holding company. The brewery was originally established in the Azumino region of Nagano in 1810. In 1961, several breweries in the region merged, and they named their main brand 酔園 (Sui en). After EH took over the brewery, they invested in modern brewing machines, improving both the quality and production volume. They primarily use Miyamanishiki and Hitogokochi rice, which are grown in Nagano prefecture. The main characteristics of their products are a dry profile, smooth texture, and restrained fruity aromas.