The Okayama distillery was embarked on a whisky business in 2011. Miyashita Sake Brewery decided to launch the production of whisky to celebrate the 100th anniversary of the brewery and this particular whisky is their 100th anniversary bottling. This is presented in a square bottle with a box.

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https://dekanta.com/store/okayama-japanese-single-malt-whisky-100th-anniversary-bottling/