ZeroWater filter systems is a powerful foundation for brewing better coffee.

Water is the main ingredient in every cup, and its composition has a direct impact on extraction, flavour clarity, acidity, and body. Overly hard or unbalanced water can lead to sharp, sour cups or brews that feel flat and lifeless — even when using great coffee and good equipment. ZeroWater filter systems allows you to remove almost all dissolved solids, creating ultra-low TDS water that gives you full control over what goes into your brew.

By producing water close to 0 ppm TDS, the ZeroWater filter system creates a clean, neutral base that can be adjusted depending on the coffee and brewing style. You can keep things simple by blending a small amount of tap water back into the filtered base, or take full control by rebuilding your water using precise mineral additions.

At Nordic Brew Lab, we often pair the ZeroWater filter system with APAX Lab mineral blends to fine-tune water profiles for specific coffees. Lower TDS values (around 40–70 ppm) tend to highlight clarity, freshness, and acidity, while higher values (100 ppm and above) increase body, sweetness, and perceived balance. This level of control is especially valuable when brewing light-roasted, single-origin coffees.

Whether you’re looking to solve local water issues, reduce scale, or build your own water profile from the ground up, a ZeroWater filter jug offers a reliable and repeatable starting point for serious coffee brewing.