01 · Customise
Apax Lab Mineral Concentrates - Box Set
Build mineral profiles tailored to each coffee and explore greater sweetness, clarity, florality and body.

Coffee consists of 98% water. Fixing your brew water is one of the biggest improvements you can do to elevate your coffee.
More sweetness. More clarity. More flavor separation.
The Apax Lab Box Set gives you complete control over your brewing water, helping you get closer to what the producer and roaster intended.
Used by championship competitors and serious home brewers around the world.
Your brewing water is one of the most important factors in making a tasty coffee, yet it's often overlooked. With APAX Labs Mineral Concentrates, build your brewing water from scratch or simply add a few drops directly to your brewed coffee to fine-tune sweetness, clarity and balance.e.
These mineral concentrates contain demineralized water and analytical reagent grade minerals (AR), ensuring very high levels of purity.
The Box Set Includes three 100ml bottles, one of each of the following mineral concentrates:
TONIK [1] – Formulated to enhance the vibrant acidity of your coffee, imparting a crisp, intense, and juicy kick to your brew.
JAMM [2] – Designed to enhance richness and depth, accentuating lingering sweetness and a creamy mouthfeel.
LYLAC [3] – Highlights delicate and floral characteristics, ensuring an elegant, refined, and graceful addition to your brew with a silky mouthfeel.
Each 100mL bottle allows for approximately 150 brews.
APAX Lab Minerals Box Set: Discover the impact that minerals have on your brewing water.
Zerowater 1.7L Filter Jug: The perfect companion to purify your brewing water, allowing you to customise your water.
2 x Zerowater Filters: Keep the water pure with a pack of 2 extra Zerowater filters

The complete water workflow
Start with pure water, then build it exactly the way you want. This bundle includes everything you need to remove existing minerals with the ZeroWater jug and create custom brewing water using the APAX Lab mineral concentrates. Whether you’re chasing more sweetness, clarity or body, you’ll have complete control over one of the most important variables in coffee.
01 · Customise
Build mineral profiles tailored to each coffee and explore greater sweetness, clarity, florality and body.
02 · Create the base
Remove virtually all dissolved minerals to create a clean, neutral starting point for your APAX water recipes.
03 · Stay consistent
Two replacement cartridges to keep your base water pure and your mineral recipes precise and repeatable.
Coffee is more than 98% water, yet most home brewers focus almost entirely on the coffee itself.
You can buy exceptional coffee, use a premium grinder and follow a precise recipe, but if the water isn't suited to the coffee, you're still leaving flavor on the table.
Different coffees thrive with different water compositions. A delicate washed Ethiopian may benefit from one mineral profile, while a rich natural coffee or syrupy espresso may perform better with another.
APAX Lab gives you the ability to tailor your water to the coffee in front of you, helping unlock more sweetness, clarity, texture and flavor separation in the cup.
Most water products give you a single recipe. APAX Lab lets you build the recipe that suits the coffee, giving you the flexibility to adjust your water based on origin, processing method, roast profile and personal preference.
No need to guess or do math. Use our simple calculator to build the ideal Apax Lab recipe based on your water volume, whether you're brewing a single cup or prepping a liter.
Open CalculatorIs the Complete Water Set for you?
Once you own a capable grinder and buy exceptional coffee, water is often the biggest variable still holding your brews back. The better the coffee, the more your water matters.
✓ This kit is for you
You do not need to be a competition barista. You simply need to care about what your coffee can taste like when water is no longer the limiting factor.
This kit may not be for you
The Perfect Water Set gives you precision, but it also asks you to prepare your own brewing water. That will not suit everyone—and that is completely fine.
When the grinder is capable and the recipe is sound, disappointing cups often point back to the water.
A more expensive grinder cannot fix unsuitable water. Better water can reveal what your grinder and coffee were capable of all along.
Prefer convenience?
A BWT jug will not give you the same precision as building water from a demineralised base, but it can soften and improve many types of tap water with almost no effort. It is the better choice if you value simplicity over full control.
Important: To fully customize brew water, your foundation needs to be demineralized or RO-water. If your water already has minerakls inside, we recommend adding maximum 3 drops of Apax Mineral per cup of coffee.
At Nordic Brew Lab, we use APAX Lab for every pour-over coffee we serve.
For rare and exclusive coffees, we often go a step further by creating tailored water recipes based on the coffee's origin, variety and processing method.
In competition, water becomes even more important.
We typically use the APAX Lab Water Recipe Calculator as a starting point, then fine-tune the recipe through extensive tasting and testing to find the water composition that best suits the coffee.
What makes APAX Lab unique is the ability to adapt the water to the coffee, rather than forcing every coffee into the same recipe.
And while APAX Lab is primarily designed for building brewing water, many competitors and coffee professionals also use it after brewing to fine-tune sweetness, clarity and balance directly in the cup.
Whether you're brewing an everyday washed coffee or a competition-level Gesha, APAX Lab gives you the same tool we use to get closer to the coffee's full potential.