Okayama and the Omachi Rice Revival

Okayama Prefecture’s contribution to Japanese sake history is disproportionate to its size and sake output. The region’s defining gift to the brewing world is Omachi — a heritage sake rice variety discovered in Okayama in the 1850s, driven nearly to extinction by the 20th century, and revived in the 1980s to become one of the most sought-after sake rice varieties in Japan.

Omachi’s History

Omachi was discovered in a field in present-day Asakuchi City in 1859 by a farmer named Kishimoto Gin’emon. By the early 20th century it had spread to multiple prefectures. But Omachi is a difficult rice to grow: tall, prone to falling over in wind and rain, susceptible to disease, lower yielding than modern varieties. As agriculture mechanized and farmers sought efficiency, Omachi nearly vanished.

The Revival

In the 1980s, Okayama Prefecture began a systematic effort to preserve and revive Omachi cultivation. The sake made from Omachi — with its distinctive earthy depth, wild energy, and complex umami — attracted passionate attention. An “Omachi Summit” of breweries using the variety created a community around the rice that generates significant consumer interest each year.

What Omachi Sake Tastes Like

Sake made from Omachi has a character unlike Yamada Nishiki or Gohyakumangoku: deeper, slightly wild, with earthy and fungal notes alongside fruit, and an umami depth that persists long after the sip. It rewards patience — these sakes often show better with food and at room temperature than they do cold and alone.

Okayama Breweries

Tsuji Honten (Gozenshu) specializes in Omachi and has been one of the primary forces behind the variety’s revival. Miyashita Sake Brewery also uses Omachi extensively. Visiting their brewery in Okayama’s rice country, drinking sake made from rice grown on the slopes visible through the brewery window, is the purest possible expression of sake’s connection to place.