About Our Water

450 MILLION YEARS IN THE MAKING

It’s What Makes Our Water Special

Kentucky’s limestone water is favored in bourbon production because it provides essential minerals like calcium and magnesium, which the yeast needs during fermentation. It also filters out iron, preventing discoloration and off-flavors. The finest traditional bourbon makers still prefer limestone water for its natural properties and potential impact on the final product.

Old Limestone is bottled in the heart of Kentucky’s bourbon country. It is 100% pure limestone filtered spring water, the same water master distillers use to make Kentucky bourbons. One splash and you’ll taste the difference as it releases all of the flavor and aroma nuances of your favorite bourbon.

HARD SCIENCE

The Science Behind Better Bourbon and Why Old Limestone Water Matters

Optimized Fermentation: Calcium helps stabilize mash pH, allowing enzymes to efficiently convert starches into sugars.
Yeast Activation: Our mineral-rich water feeds yeast for cleaner, higher-yield fermentation and smoother alcohol production.
Enhanced Mouthfeel: Water hardness—thanks to calcium—adds structure and body to your bourbon’s finish.
Naturally Filtered, Iron-Free: Sourced from Kentucky’s limestone-rich springs, our water is naturally high in calcium and low in iron—eliminating off-flavors and cloudiness.

Old Limestone is the same water Kentucky’s master distillers use—because better bourbon starts at the source. Just one splash brings your bourbon to life

WATER OF CHAMPIONS

Why Do Kentucky Thoroughbreds Thrive? It’s the Water.

Kentucky’s limestone-rich spring water is packed with calcium and essential minerals—perfect for building strong, healthy bones in horses. It’s no wonder thoroughbreds raised here have a legacy of strength and speed.

Old Limestone is 100% pure limestone-filtered spring water, bottled in the heart of bourbon country. The same water master distillers trust. The same water Kentucky horses have been drinking for generations.

Old Limestone — A Horse Always Knows.

TASTE THE DIFFERENCE

The Secret to Great Bourbon

Try it yourself. Pour a bourbon neat, then take a sip. Delicious, of course. Now add a splash of Old Limestone and swirl it around. Take another sip. We promise you – what you taste will take you back to what you love; a classic bourbon, just as Nature intended it to be.

1000ml Bartop Bottle

This is our flagship bottle – our rigid Bartop bottle filled with our famous Kentucky limestone filtered spring water. It is presented in our traditional, decorated box and has free tasting notes inside.

12oz Tailgater

Our lightweight 12-ounce Portable bottles are the perfect wedding favor, tailgate mixer or as the mixers for a large group tasting.

1 Liter

1 liters are perfect for large groups. One or two bottles will make plenty of ice cubes or can handle a good size crowd at the bar.

SINGING OUR PRAISES

What Our Customers Are Saying

"With just a splash of limestone water, the bourbon's flavors are elevated to new heights, revealing nuanced notes and enhancing the overall drinking experience."

"I recently tried limestone water for mixing with bourbon,and it has completely transformed my drinking experience."

"I love this stuff it works great; I would recommend it to anyone. Well worth the price."

"Purchased as a gift for my Father who is a big bourbon lover. He absolutely loves it. Get it for the bourbon lovers in your life."

"Cheers to a perfect pairing!"