Diageo brand Bulleit has launched Bulleit Barrel Strength Frontier Whiskey in Kentucky, US.

Claimed to be distilled from quality ingredients, this new variant is a barrel strength version of Bulleit Bourbon with the same high-rye mash bill of roughly 2/3 corn and 1/3 rye.

The barrels selected to create Bulleit Barrel Strength were first emptied and then combined into a single batch without including any additional water after the whiskey was removed.

"For the initial release, fewer than 5,000 cases are being made available."

It has been bottled at Stitzel-Weller facility in Louisville.

The drink is medium-amber in colour, with gentle spiciness and sweet oak aromas. The mid-palate is smooth with tones of maple, oak and nutmeg. Its finish is long, dry, and satiny with light toffee flavors, and deepened oak notes.

The initial release of Bulleit Barrel Strength will only be available in Kentucky at licensed liquor stores and restaurants and bars.

For the initial release, fewer than 5,000 cases are being made available.

Diageo Bulleit brand director Ed Bello said: "We’re happy to share this Barrel Strength offering with our friends and loyal Bulleit fans in Kentucky."

The brand was founded in 1987 by Tom Bulleit.

In 2014, Bulleit began construction on a new $115m distillery in Shelby County, Kentucky. This plant is expected to be operational by early 2017.