Complete Water Kit

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.

Sale price1 690 kr

The complete water workflow

What’s inside

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.

Save 420 kr compared to purchasing everything separately.

Why Great Coffee Starts With Water

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.

APAX Lab mineral concentrates used for brewing water at Nordic Brew Lab

The Apax Calculator Does the Work for You

Unlock the Perfect Brew Water

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 Calculator

Is the Complete Water Set for you?

Is the Complete Water kit 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 want to get the full value from your coffee.

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.

  • You buy coffee from quality-focused specialty roasters.
  • You have invested in a capable grinder and brewer.
  • You want to taste more sweetness, clarity and origin character.
  • You want a consistent water foundation rather than relying on whatever comes out of the tap.
  • You are willing to spend a few minutes preparing water in exchange for more control over every cup.

This kit may not be for you

You want the simplest possible solution.

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.

  • You do not want to spend any time mixing your own water.
  • You prefer a completely set-it-and-forget-it solution.
  • You are satisfied with your current water and do not feel the need to fine-tune flavour.
  • Convenience matters more than extracting the final layer of clarity and sweetness.

Good coffee should not taste like this.

When the grinder is capable and the recipe is sound, disappointing cups often point back to the water.

×
Dry and astringent
Unsuitable hardness or mineral composition can make the finish feel rough and drying.
×
Flat and muted
Excessive buffering can suppress acidity, clarity and the character you paid for.
×
Sharp instead of juicy
Poorly balanced water can make acidity feel disconnected rather than vibrant and sweet.
×
Every coffee tastes similar
Unsuitable water can mask the differences between origins, varieties and processing methods.
×
Better at the roastery
You may be using the same beans and recipe, but not the same water.
×
Inconsistent from day to day
Controlled water removes one of brewing’s largest hidden variables.
Greater clarity between coffees
More sweetness and balanced acidity
A repeatable starting point every time

A more expensive grinder cannot fix unsuitable water. Better water can reveal what your grinder and coffee were capable of all along.

Prefer convenience?

Skip the mixing. Get a BWT filter jug.

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.

Shop BWT filters

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.

Carlos Escobar brewing with APAX Lab
Carlos Escobar from Differente Coffee brewing coffee at Nordic Brew Lab.

Why We Use APAX Lab at Nordic Brew Lab

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.