What is "koshu"

Kōshū or Koshu may refer to:

• • Kōshū, another name for Kai Province.
  • Kōshū, Yamanashi, the present city in Yamanashi Prefecture.
  • Koshu (grape), a variety of Grape. / Kōshū, another name for Hyūga Province.
• • Koshu, South Korea

Koshu (甲州 kōshū) is a white wine grape variety that has been grown primarily in Yamanashi Prefecture of Japan. It was developed from grapes that were brought from the Caucasus through the Silk Road, at a period estimated to be around a thousand years ago. Though long thought to be of exclusively European origin, it is now known to be a hybrid (probably naturally occurring) of Europe's Vitis vinifera and one or more Asian Vitis species. The name “Koshu” is a former name for Yamanashi.