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GLACIAL empirical water v1.5 Sample — Just Pay Shipping

GLACIAL empirical water v1.5 Sample — Just Pay Shipping

Regular price $0.01
Regular price $10.00 Sale price $0.01
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An open source project developed by Arby Avanesian.

LIMIT: 1 per customer.

    empirical GLACIAL water is a comprehensive mineral profile for brewing any coffee or tea, inspired by glacial water. It's the only brew water on the market to make use of paradigm-shifting minerals like calcium carbonate and silica.

    Unique Features

    1. Large sweet spot — Dial into a bigger sweet spot, courtesy of calcium carbonate.
    2. Adjustable for any roast — Your sample consists of the default version of the water, meant for light roasts. (Leave an order note to request otherwise.)
    3. Clean depth — Mute funky off-notes without reducing desirable flavors.
    4. Espresso AND filter-friendly — Barely scale-forming in the kettle. Descale your espresso machine once every 1000 shots pulled.
    5. Silica* — A syrupy sweet mineral that also boosts mouthfeel and aftertaste. *Included in your brew water if selected.

    Regular orders ship free to USA and Canada. International customers are responsible for duty fees.

    What's in the box?

    Your order contains:

    • Brew water — Comes in a 1 liter bottle. Ready to use, just pour into your kettle, heat up, and brew.
    • Mixing Bottle Label — Convert your Sample bottle into a Dedicated Mixing Bottle for use with future orders of concentrate.
    • Info Card — For handy instructions, social media info and contact info for feedback.
    • Business Card — Includes the developer's personal phone number, email address, social media handle and subreddit.
    • 2 Stickers empirical water icon and wordmark.


    Your order contains ready-made brew water. Simply pour the brew water into your kettle, heat up, and brew.

    Coffee vs Tea

    The Coffee and Tea Editions are pending differentiation. The Edition selector will stay up in the meantime to indicate that empirical GLACIAL water is suitable for both coffee and tea.


    empirical GLACIAL 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.

    Extraction Booster

    The Extraction Booster is a dropper bottle of mineral concentrate, designed to increase flavor intensity and definition.

    If selected, the Extraction Booster will be incorporated into your sample of brew water.

    Mineral Composition

    All minerals in empirical water can be found in natural mineral waters at comparable concentrations.

    GLACIAL v1.5

    TDS  70.2 mg/L


    Deionized water, sodium bicarbonate, calcium carbonate, magnesium sulfate, calcium chloride, magnesium chloride, potassium bicarbonate.

    View full details

    Bonuses with your order

    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. Text (or email) me about how your brews are going, and I'll be there to help you unleash the full potential of your brews.
    • 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

    Based on 24 reviews
    A/B Cupping Results

    Just did an A/B cupping of a September coffee using my normal 40/20/20 and empirical and the differences are huge.
    - very upfront acidity
    -low body
    - I find more florals and herbal notes than sweetness with a clear delineation of flavor

    - huge difference in body/mouthfeel
    -very balanced with emphasis on sweetness
    - some florals on initial sip but then goes to more darker fruit characteristics turning it juicy which is different . I find slightly less delineation with more blended flavor presentation.

    They’re both really great and just highlights different attributes of the coffee so I can't say anything about “better” but definitely a viable option to consider .

    J. M.
    Very noticeable improvements

    Great flavor, and very noticeable improvements in terms of texture and length of aftertaste. My tea was noticeably more viscous and oily, which was great. I also noticed a bit less astringency. Arby is doing good work here.

    Ethan Adams
    This is it.

    I’ve been experimenting with water for a while; this formula has everything I’ve been aiming to achieve in a very approachable, user friendly experience. I will be buying this again. Id recommend this to everyone who is trying to elevate their coffee (and tea) experience.

    I'm upset, in a good way

    I'm kinda mad at how much better my tea was with Empirical Water.
    The soup was thicker in a great way. Pulled more from the tea.

    Chaim Adler

    empirical water v1.5

    Fantastic water, unique composition, worth buying!

    Arby's water is unique in the use of CaCO3 and the formulation mechanism. It undeniably has an impact not found in other mineral compositions. The large sweet spot in the brew, the taste, the mouthfeel are all elevated. Astringency is also lowered which is very nice cause it allows me to push extraction without as harsh impacts from accidental astringency.

    This water keeps upgrading with Arby's efforts and I am excited to see where it goes! Currently you can tweak it yourself to taste through the use of varying amounts of booster, buffer, or hardness. Lovely kit, came with everything you need and would recommend giving a shot!

    Danny McMaken

    empirical water v1.5 — Free Sample

    Josh Fiore
    Fixed my struggles with pourover coffee

    I've tried everything from filtered tap, bottled water, Third Wave Water, to making my own mineral concentrates and targeting specific amounts of alkalinity and hardness from sodium + potassium bicarbonate and magnesium + calcium chloride. Empirical Water is by far and away the best results I've had so far. On top of the water, Arby has been great to communicate with in the live chat--super friendly and helpful when it comes to chatting water and brew recipes.

    Christopher Winter
    Excellent water

    The taste and texture of this water were exactly what my espresso was missing. It added another layer of smoothness as well as balancing acidity.

    Yummy water for tea

    Arby's water excels at powerful fore-flavor but lacks somewhat in aftertaste and huigan.

    The current version is much better with regards to the aftertaste however it could still use some improvement. The fore-flavor is amazing though.

    Still by far the best water I've found for making tea, highly recommend trying.