Omachi: The Heritage Variety

## The Living Ancestor

{{glossary:omachi}} (雄町) is not just a sake rice — it is a living connection to the origins of modern sake brewing. Discovered in 1859 in Okayama Prefecture, Omachi is the oldest pure (non-crossbred) sake rice variety still in commercial cultivation.

## Discovery and Near-Extinction

A farmer named Jinzo Kishimoto discovered the original Omachi plants growing wild in a mountain pass. The variety gained popularity throughout the Meiji and Taisho eras but nearly disappeared by the 1970s as farmers switched to higher-yielding modern varieties. Passionate brewers led a revival that has made Omachi one of sake's most celebrated grains.

## Genetic Significance

Omachi is a genetic parent or grandparent of many important modern sake rice varieties, including {{glossary:yamada-nishiki}} (through Yamadaho, which is an Omachi descendant). Understanding Omachi is understanding the root of the sake rice family tree.

## Flavor Character

Sake brewed from Omachi is characteristically rich, full-bodied, and deeply layered. Where Yamada Nishiki tends toward elegance, Omachi delivers substance — pronounced {{glossary:umami}}, earthy undertones, and a long, complex finish. The flavor has been described as wild, primordial, and deeply satisfying.

## The Omachi Summit

The annual Omachi Summit in Tokyo brings together breweries from across Japan that work with this variety. The event is a celebration, tasting, and educational symposium that has significantly raised Omachi's profile among enthusiasts and professionals.

## Growing in Okayama

Nearly all Omachi is grown in Okayama, particularly in the Takashima area. The variety requires a long growing season, and the tall, thin plants are vulnerable to lodging. Specialized farming knowledge and dedicated growers maintain the quality that brewers depend on.