The key to great coffee is 4.5 billion years old.
Let's use it to our advantage.
The Best Water for Coffee — empirical water Bundle
The Best Water for Coffee — empirical water Bundle
120 USD value of the best water for coffee, for new customers only.
empirical water is the choice of 2022 World AeroPress Champion and other world class international coffee competitors.
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The Best Water for Coffee
Are you looking for the best water for coffee, for consistently incredible brews?
This comprehensive 16-part bundle will end your search — and it all starts with the new water of choice for world class coffee professionals.
The Best Water for Coffee — Bundle Items
Physical Products — The Best Water for Coffee comes in the form of both concentrates AND ready brew water, and comes with convenient measuring equipment.
- empirical water glacial concentrate set: Brew 80 cups of coffee with an emphasis on clarity and complexity, suitable for coffee, espresso and tea — 40 USD Value
- empirical water spring concentrate set: Brew 40 cups of coffee with an emphasis on body and richness, suitable for coffee and tea — 40 USD Value
- empirical water brew water sample set, includes the default version of each profile of the best water for coffee: 1 liter glacial, 1 liter spring. Brews 8 cups of coffee. Sample bottles are reusable for mixing brew water from concentrate — 20 USD Value
- 1 vial of extraction booster, for enhanced flavor definition in your coffee — 5 USD Value
- 50 mL measuring cylinder, to conveniently measure glacial hardness concentrate — 5 USD Value
- 100 mL measuring cylinder, to conveniently measure spring hardness concentrate — 5 USD Value
- 10 mL precise measuring syringe, to measure buffer for bulk batches of brew water — 5 USD Value
- BONUS: Double your next order of mineral concentrate using provided password — Up to 100 USD Value of the best water for coffee (USA only)
Digital/Service Components
- 12 months 1-on-1 Brew Mentorship
- 30 minutes Live Brew Coaching
- 30 minutes Brew Video Analysis
- Specialty Brew Water Masterclass
- empirical water Cupping Method
- empirical water Pour Over Method
- empirical water Coffee Storage Method
- Access to empirical water Discord
To receive all digital components including password, opt into email during checkout.
Our Signature Mineral Profiles
empirical water glacial — Inspired by natural glacial water, this profile is harmonious and lively, emphasizing clarity and complexity in your coffee, espresso and tea.
2024 US National Brewer's Cup 3rd Place, Sompetch "Pack" Katisomsakul, considers our glacial profile the best water for coffee.
"This water is excellent for enhancing the quality of your coffee," says Pack. "I highly recommend using empirical water to bring out the best flavors in coffee, especially in competitions, as I would do for myself."
empirical water spring — Inspired by natural spring water, this profile is resonant and concentrated, emphasizing body and richness in your coffee, espresso and tea.
2022 World Aeropress Champion, Jibbi Little, considers our spring profile the best water for coffee.
"I love the spring water for brewing coffee," says the 2022 World Aeropress Champion. "It brings out floral and sweet notes, resulting in a clean cup without any bitter or drying aftertaste."
What Makes empirical water the Best Water for coffee?
- Coffee on Easy Mode — Dial into a huge sweet spot, for tasty brews without fail.
- Intense Sweetness — Bring high levels of sweetness out of any coffee.
- Funk Free — Mute funky off-notes and spotlight clean deliciousness.
- Silky Smooth — Luxurious mouthfeel without any drying sensations.
How We Created the Best Water for Coffee
In our 7 years of testing, we found that mineral waters from glaciers and springs interact most beautifully with coffee.
To reverse-engineer these natural mineral waters, we painstakingly emulate nature's process for dissolving limestone, i.e. calcium carbonate.
This labor-intensive process allows us to produce the best water for coffee.
This yields record-low levels of chloride and sulfate impurities in the water, which is what makes empirical water so forgiving to brew with. Then, we spent several hundred hours fine-tuning these mineral profiles specifically for brewing coffee (& tea).
Along with our unique use of silica, these advantages make empirical water the best water for coffee.
Beyond The Best Water for Coffee: Digital Items
This Bundle doesn't just contain the best water for coffee — It also includes numerous forms of guidance and information to help you brew the best coffee you've ever tasted.
12 Months 1-on-1 Brew Mentorship — Over direct message with the founder. Speed-run the path to coffee & tea mastery!
30 Minutes Live Brew Coaching — To help you perfect your brews over video call. Guidance is based on the equipment you have available, the coffee at hand and your idealized vision for how you'd like to experience it.
30 Minutes Brew Video Analysis — We'll go frame by frame to identify potential areas for improvement in your brew to help you achieve your ideal cup.
Specialty Brew Water Masterclass — In the form of a 60 minute pre-recorded interview and another 15 minutes of easily digestible content in written form to answer all your questions about what goes into great brew water.
empirical water Cupping Method — A foolproof brew method you can use to maximize richness and thickness in coffee, in printable PDF form.
empirical water Pour Over Method — A pour over method that emphasizes sweetness, depth, and flavor separation in coffee, in printable PDF form.
empirical water Storage Method — A comprehensive DIY storage guide you can use to halt staling and aromatic dissipation in your coffee, in printable PDF form.
Access to the empirical water Discord — Draw from the collective experience of the entire community.
Customers outside of USA, please note that your water will be shipped in PET bottles instead of glass for durability reasons.
Mineral Profiles
Mineral Profiles
glacial v1.5 (Default)
Harmonious and lively, with an emphasis on clarity and complexity. Suitable for coffee, espresso and tea. Default TDS: 70 mg/L
spring v1.1 (Default)
Resonant and concentrated, with an emphasis on body and richness. Suitable for coffee and tea. Default TDS: 157 mg/L
Ingredients
Ingredients
All ingredients used are found in naturally occurring glacial and spring water.
Deionized water, sodium bicarbonate, calcium carbonate, magnesium sulfate, calcium chloride, magnesium chloride, potassium bicarbonate.
Customer Reviews
What's nice about Empirical is that it's solid without tweaks. If you know the importance of water in coffee, this is a must try. Arby is right about widening your extraction sweet spot with this water - it's truly forgiving.
I’m a coffee noob and am still trying to develop my palette. My current water jug ran out so I grabbed the empirical water to try it today. It instantly made a fruitier cup where I could taste more of the notes on the box than anything I’ve done before! I am actually really impressed and will continue to purchase.
I use Spring for brewing coffee and loose leaf teas. I prefer this water over Glacial for Spring’s bombastic extraction power and thick, flavorful brews with a minimum of harshness. Glacial tastes good but Spring expresses more flavor, color and texture in the final cup.
Pour over dark roast coffee: very forgiving yet rich brews. The cup is always full of roasty dark flavors without being oppressive. I think this is the best water for coffee (though it’s not for espresso).
Loose leaf Chinese black tea in a gaiwan: comes out velvety and chocolatey, deliciously sweet and cocoa-y. The brew is noticeably syrupy and has a deep, dark red hue.
Loose leaf Chinese Green tea in a gaiwan: fresh, sweet, nutty, and intense umami flavors are elevated, while bitterness is pretty much a non-issue. The tea presents as soup-like and enriching.
Sencha in a kyusu: warm, comforting savory notes are emphasized, yielding a fragrant, brothy result and brilliant yellow-green hues.
note: I use Spring concentrate, which I mix with DI water to use as my brew water. I always mix it with the buffer amount intended for tea, as denoted in the Empirical Water User Guide. Despite my initial misgivings about high mineral content water, it seems Spring is the best water for tea that I have tried.
This week I tried Spring for my tea. Everything tastes better with this water. Glacial is still my go to for coffee but Spring elevates green tea especially. Very excited.
My use case has been ultra light to light roast espresso shots 1:2.5 ratio at 93C on high extraction burrs. I really like how it has given a smooth finish bright acidity and I have had less astringency when I push extractions. I like the creative profiles I can get with lotus but right now I really like empirical water and plan to stick with it for a while.
Glacial 1.5 yields an impressively balanced presentation across a wide spectrum of coffees and teas; ultralights, comfort roasts, shaded greens, yancha, puer, and more.
If you've dabbled in making your own brewing water, you'll notice a level of liveliness, clarity, and flavor separation that you might not have expected was possible at this level of texture, sweetness, and depth.
Extra silica is a nice add-on but not strictly necessary imo. It adds a fullish and slippery texture, with an almost-undetectable increase in sweetness.
Most coffees can be pushed a bit harder without becoming muddy or harsh, though careful dialing-in is still necessary for best results.
Empirical Water Glacial version has quite substantially improved my coffee water. I have tried virtually every competitor out there. And I prefer the final product that this water produces. Hardcore baristas and hobbyist alike will enjoy their coffee more.
I was skeptical, initially, thinking that my RO water (which tastes great to drink) was also great for tea. But I was wrong; Empirical Water makes a huge difference to the quality of my tea! Give it a try!
I guess I always spent so much time stressing over coffee gear and technique and didn’t realize a majority of the cup is water. This plays a huge role in the overall taste. I tried cupping with four different kinds of water and both the Spring and Glacial profiles came out on top. Spring on the top for me. Do yourself a favor and get a sample, cup it with what you use now and see the difference.
The water delivered great and really sweet cups. I shall be ordering again!