Louisville Whiskey Co. 10 Year Old Cask A78 Nuclear Nectar Bourbon Whiskey

Louisville Whiskey Co. 10 Year Old Cask A78 Nuclear Nectar Bourbon Whiskey is a single-barrel Kentucky straight bourbon from Louisville Whiskey Co., the single barrel collection of Prohibition Craft Spirits (PCS Distilling) in Louisville, Kentucky — bottled from Cask #A78 alone at a hazmat-level 146.6 proof (73.3% ABV), in a 750mL bottle. The program earmarks individual barrels in the warehouse, ages every bourbon at least eight years, heat-cycles part of the maturation in PCS Distilling's own warehouse to drive the spirit deeper into the new charred American oak, then bottles each barrel non-chill filtered at full cask strength with no water added. A decade in oak has concentrated this barrel into a dense, oak-driven pour. It is available to order online at Del Mesa Liquor.

• Proof / ABV: 146.6 proof (73.3% ABV), cask strength — hazmat
• Size: 750mL
• Age: 10 years
• Cask: Single Cask #A78, new charred American oak
• Distillery: Prohibition Craft Spirits (PCS Distilling), Louisville, Kentucky
• Filtration: Non-chill filtered, no water added
• Origin: Kentucky, USA

A Single Barrel Program Built on Proof

Prohibition Craft Spirits was founded by Keith Hazelbaker in 2016 in Louisville's NULU — New Louisville — district, and its whiskey work grew from the NULU single barrel bourbons into the Louisville Whiskey Co. label: private, single barrel releases only, each barrel earmarked in the warehouse for the program. The heat-cycling is the house signature — deliberate temperature swings push the spirit in and out of the wood, raising both proof and viscosity — and bottling without water or chill filtration means Cask #A78 reaches the glass exactly as it came out of the barrel. Browse more single barrels in our barrel picks and the wider bourbon whiskey shelves.

Tasting Notes

Dense and oak-driven after a full decade in new charred American oak, with exceptional grain depth and natural sweetness under the heat — at 146.6 proof the concentration is the story, and the finish runs long and warming.

How to Enjoy

Start with a small pour and give it time, then add water a few drops at a time — at hazmat strength each drop opens another layer of oak and grain. Proof hunters should also work through our American whiskey collection and the full whisky range.

Frequently Asked Questions

Why is it called Nuclear Nectar?
That is the nickname of Cask #A78, and it earns it: bottled at 146.6 proof (73.3% ABV), the barrel sits in hazmat territory — the informal name for bourbon bottled above 140 proof.

What does heat-cycled mean?
Part of the maturation happens in PCS Distilling's own warehouse, where deliberate temperature swings push the whiskey deeper into the wood, raising proof and viscosity and pulling more character from the new charred oak.

How many bottles are there?
Only what this one barrel yielded — it is a single cask, bottled non-chill filtered at full cask strength with no water added, so once Cask #A78 is gone there will not be another.

Secure Cask #A78 Nuclear Nectar at Del Mesa Liquor in San Diego, CA — one barrel, at full hazmat strength.