When it comes to exploring the world of whisky, there is no shortage of intriguing options to choose from. One such option that has been gaining popularity in recent years is Iwai 45. But, what exactly is Iwai 45? Let’s dive into the details to understand this unique Japanese whisky and what sets it apart from the rest.
The Origins and Distillation Process
Iwai 45 is a blended Japanese whisky that is expertly crafted at the renowned Mars Shinshu distillery in Nagano. This distillery has a rich history and is known for producing exceptional spirits, and Iwai 45 is no exception to that legacy.
The Perfect Blend
What makes Iwai 45 particularly interesting is its composition. It is a skillful blend of 70% corn and 30% malted barley, resulting in a harmonious balance of flavors. This unique combination provides a smooth and approachable character that appeals to both whisky enthusiasts and those new to the world of Japanese whisky.
Aging Process and Barrel Influence
To achieve that distinctive taste, Iwai 45 is aged for a period of 2 to 5 years in ex-bourbon barrels. This aging process allows the whisky to develop its flavors and brings out the complexity of the ingredients used in its production. The ex-bourbon barrels impart a subtle sweetness and delicate notes of vanilla, adding layers of depth to the whisky.
ABV Elevation for Cocktail Versatility
One aspect that sets Iwai 45 apart is its elevated alcohol by volume (ABV) of 45%. This slightly higher ABV is intentional and designed to offer greater versatility when it comes to crafting cocktails. The elevated ABV ensures that the flavors of Iwai 45 shine through even when mixed, making it an excellent choice for those who enjoy experimenting with different cocktail combinations.
The Art of the Highball
Iwai 45 is particularly well-suited for one classic Japanese drink – the highball. The highball is a refreshing and iconic cocktail that combines whisky and soda water. The flavors of Iwai 45 truly come alive when paired with soda water, creating a beautifully balanced and effervescent beverage that is incredibly enjoyable, especially during warm summer months.
Discovering the Exquisite Enjoyment
Whether you are a whisky aficionado or just starting your journey into the world of spirits, Iwai 45 offers a delightful experience. Its smoothness, versatility, and flavor profile make it a great addition to any collection, and its ability to shine in a variety of cocktails adds an element of excitement to any mixology endeavor.

Final Thoughts
Iwai 45 is a Japanese whisky that embodies the artistry and craftsmanship behind the Mars Shinshu distillery. Its unique blend of corn and malted barley, coupled with the aging process in ex-bourbon barrels, results in a whisky that is both approachable and complex. The elevated ABV of 45% elevates its cocktail versatility, and it truly shines when paired with soda water in a classic highball. So, if you’re seeking a versatile and flavorful option for your next whisky experience, look no further than Iwai 45.