This blog is written by author Sachiko who is not a native speaker of English, so it may be hard to read. It is translated from the summary of Japanese page; http://akitaodatelifejp.hatenablog.com/

“Omori Wine” made from grapes of Akita(Mercian Corporation)

This wine is made from the grapes of Omori district, Yokote city.

Akita is a major production area of Japanese rice wine sake, its cool climate is suitable to grow Riesling grapes for wine too.

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The information is as of April 5th 2017.