Iwai is manufactured at Mars's Shinshu Distillery, which is located in Nagano Perfecture at 798 meters above sea level. The environment of Shinshu Distillery is surrounded by granitic soil with crystal clear water source, which is perfect for the high standard whisky production. Iwai collection is named after the creator of Mars distillery, Kiichiro Iwai, who is also the former mentor of Masataka Takesturu.
- 1 x Komagatake Wine Cask
- 1 x Iwai Tradition Wine Cask