empirical water glacial 1.5 — concentrate set
empirical water glacial 1.5 — concentrate set
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Brew like a world champion.
At empirical water, we produce brew water that unlocks boundless sweetness and aromatics in your coffee & tea, with virtually zero harshness.
What to expect from empirical water
- Forgiving — Dial into a huge sweet spot, for tasty brews on easy mode.
- Intense Sweetness — Get high levels of sweetness in every brew.
- Clean Depth — Mute funky off-notes without reducing desirable flavors.
- Silky Smooth — Luxurious mouthfeel without any drying sensations.
Inspired by natural mineral water from glaciers, our GLACIAL profile is harmonious and lively, emphasizing clarity and complexity in coffee & tea.
How did we do it?
We reverse-engineered glacial mineral water by painstakingly emulating the natural limestone dissolution process, for record-low levels of chloride and sulfate impurities in our water.
Simply dilute the provided mineral concentrates with zero TDS water, and you can easily mix world class brew water for any coffee or tea.
Comes in sturdy, reusable glass bottles. Crafted in small batches, one batch at a time. Supply is limited.
International customers pay a flat rate of $29 for shipping and are responsible for duty fees.
World Class Testimonials
World Class Testimonials
Jibbi Little — 2022 World Aeropress Champion
"I love the spring water for brewing coffee. It brings out floral and sweet notes, resulting in a clean cup without any bitter or drying aftertaste."
Try Jibbi's preferred mineral profile: spring
Sompetch "Pack" Katisomsakul — 2024 US National Brewer's Cup 3rd place
"I was pleasantly surprised when I first tried empirical water. When I brewed a natural anaerobic coffee with it, the water softened the funky flavors, allowing hidden elements to shine with a clean finish, even as it cooled down. This water is excellent for enhancing the quality of your coffee. I highly recommend using empirical water to bring out the best flavors in coffee, especially in competitions, as I would do for myself."
Try Pack's preferred mineral profile: glacial
Patrick Penny — Lead Product Developer at a major coffee company
"I’ve tested hundreds of water sources, including other ‘water optimizers’, for both personal and professional endeavors with tea and coffee. I can say with confidence that Empirical Water’s Spring and Glacial waters will bring your brews to the next level. I did both sequential and blinded tasting against a few of my favorite other water sources and the difference in sweetness perception, flavor clarity, and degree of extraction was clearly in Empirical Waters favor. I plan to continue using Empirical Water’s products both for fun experiments and everyday brewing!"
Grind That Coffee
"We’ve been brewing, testing, and comparing these profiles for a few weeks now, and we are impressed by the results," say Hanna and Damian from Grind That Coffee. "The brews are noticeably different from other available 'water options.' In terms of profiles, we found that for some coffees, we preferred glacial, while for others, the spring profile stood out—so there’s no clear winner for us yet."
"What they certainly have in common is that they bring sweetness to the forefront, create an incredibly pleasant mouthfeel, and extend the aftertaste. We love how some funky naturals that we previously found hard to drink suddenly became enjoyable, with the 'funkiness' reduced to a minimum. For washed coffees with high acidity, the glacial profile and buffer worked wonders to create a balanced cup! While we continue testing, we’re enjoying the brews these concentrates deliver and having fun experimenting."
What's in the box?
What's in the box?
Your order contains:
- Hardness concentrate — Comes in 1 liter bottle(s).
- Buffer concentrate — Comes in 1 oz dropper bottle(s).
- Extraction Booster — If selected, comes in 1/2 oz dropper bottle(s).
- Hardness Measuring Cylinder — See 'Bonuses with your order'.
- Info Card — A written introduction to empirical water and a convenient QR code to the User Guide.
- 2 Stickers — empirical water icon and wordmark.
Instructions
Instructions
Prepare in a 1 liter bottle, or directly in your kettle.
- Add 50 mL (or 50 grams) GLACIAL Hardness.
- Add 0.5 mL (or 0.59 grams) GLACIAL Buffer.
- Optional: Add 0.5 mL (or 0.59 grams) Extraction Booster.
- Fill remaining capacity with 950 mL (or 950 grams) zero TDS water.
Alternatively, prepare in a 1 gallon container of your choosing:
- Add 190 mL (or 190 grams) GLACIAL Hardness.
- Add 1.9 mL (or 2.24 grams) GLACIAL Buffer.
- Optional: Add 1.9 mL (or 2.24 grams) Extraction Booster.
- Fill remaining capacity with zero TDS water.
For higher intensity and acidity, use less buffer. For lower intensity and acidity, use more buffer.
Silica
Silica
empirical water is the only coffee water on the market to incorporate silica, a mineral that occurs naturally in many of the world's finest mineral waters.
Silica boosts sweetness, mouthfeel, and aftertaste.
Some describe the silica sensation as experiencing the sensory characteristics of your brew in slow motion. Aromatics stick around in your nose, mouth and throat for minutes on end.
If selected, silica will be added to your Hardness concentrate.
Extraction Booster
Extraction Booster
The Extraction Booster is a dropper bottle of mineral concentrate, designed to increase flavor intensity and definition.
Mineral Composition
Mineral Composition
GLACIAL, v1.5
Harmonious, balanced, lively.
TDS: 70 mg/L
Ingredients
Ingredients
Hardness: Calcium carbonate, magnesium sulfate, calcium chloride, magnesium chloride.
Buffer: Deionized water, sodium bicarbonate, potassium bicarbonate.
Extraction Booster: Deionized water, magnesium chloride, magnesium sulfate.
Bonuses with your order
200% Extra Buffer
All orders come with triple the required amount of buffer.
With extra buffer, you can accomplish two things:
- Reduce harshness — Less bitterness and astringency.
- Boost texture — For lusciously thick brews.
Extra buffer generally translates to a better experience with medium and darker roasts.
50 mL Measuring Cylinder*
*At your request, a free 50 mL measuring cylinder is supplied to help measure your hardness concentrate.
If you lose or break your cylinder, leave an order note with your next order, and you'll receive another cylinder for free.
1-on-1 Brewing Guidance
When you're accustomed to brewing with the same water for a long time, it can be disorienting to make a switch - especially when the new water is unlike anything else on the market.
That's why as the developer, I'm offering my time to personally assist you in bringing the best out of your coffee or tea with empirical water.
Guidance includes:
- 1-on-1 Brewing Consultations — Your order confirmation includes my personal contact information. From then on, I'll be available 7 days a week to personally help you every step of the way to brew the best coffee or tea you've ever tasted.
- Brew Video Analysis — Record your brew using your phone camera and send it over. I'll analyze your brew, help you figure out what's going wrong, and explain how to fix it.
Official Discord Access
Water is the most impactful brewing variable. So when you keep the water constant between your setup and someone else's, you gain the advantage of having truly consistent and valuable conversations around coffee.
In the Empirical Water Discord, you'll find people who brew similar coffees with similar brewing methods using the same water. There, you can directly copy already-perfected brew recipes with immediate success — for instantly dialed-in brews.
Customer Reviews
I received the free sample of spring and glacial water from Empirical water in a Reddit giveaway. I absolutely loved what this water did to my coffee brew using V60 pour over. Ill definitely be buying more in the future!
Had a chance to try both water types of empirical water and thoroughly enjoyed each - more so than the mineral packets available.
Excellent water for coffee, highly recommend!
Overall, the water did enhance the flavor profile of the coffee I was brewing. I was having trouble highlighting the lavender notes, but switching to the glacier water helped in resolving!
After struggling to find good water for tea, I eventually tried Arby's empirical water and I couldn't go back! This gives my tea a much clearer and better taste than any combination of filters or tap water I've tried, without the hassle of having to constantly buy large quantities of bottled water. It's such a simple way to make such a large difference, I'm delighted that this exists!
Was thrilled to find my concentrates came with a hardener, buffer and extraction booster. After following Arby's advice to start with 0 TDS filtered RO water I was able to get vibrant, clean tasting cups from light and UL roasts that had eluded me with other remineralised waters. Because the solutions are divided in this manner you can easily produce the profile you want with soft, low buffer water and still get the most flavor. Very happy!
empirical water GLACIAL, v1.5 — Concentrate
I cannot praise this water enough - it's simply outstanding.
After testing it against a well-known coffee water solution I've been using for some time, Empirical Water, to my taste, was far and away the better product. And, to be clear, it wasn't even close. Within seconds, on the first sip, it was immediately clear that Empirical Water was the winner, and, indeed, entirely in a league of its own. There was simply no comparison. It was astounding.
I think it's incredibly impressive when a product has the potential to revolutionize the way people taste and experience such culturally and socially important beverages consumed by billions, and I feel Empirical Water has the potential to bring a bit more joy, enjoyment, and deliciousness to people's lives. What an amazing opportunity and laudable pursuit. From my own perspective, after trying it out, I feel there's simply no going back to any other water. And that's a great thing.
If you seek to reach another level with your tea and coffee then seek no more! For you have found the secret ingredient! Water is so important in tea and coffee, its not even funny. With empirical water your tea and coffee will be levels ahead of your neighbors cup ofbigelow or folders!
Brewing with empirical water has produced some of the best cups I've made. I had a natural Pacamara that had been difficult to brew really well and switching to using Empirical Water, Glacial with silica, produced a noticeably creamier more full-bodied texture. More pleasant acidity. Bit more clarity. Longer pleasant aftertaste. This water makes all my brews better and even when a brew occasionally doesn't go well, it's still tasty and has wonderful texture thanks to this water. Definitely try it out, and splurge for the silica, it's worth!