WB.coffee – Filtered & Mineralised Water for Coffee | Espresso & Filter
💧☕👃 Better Water. Better Extraction. Discover What Your Coffee Can Really Taste Like.
Coffee is approximately 85–98.8% water, depending on the brewing method. Yet water is often the most overlooked ingredient in coffee preparation.
The minerals dissolved in your brewing water influence extraction, acidity, sweetness, bitterness, mouthfeel and overall flavour balance. Even exceptional specialty coffee can taste disappointing when brewed with unsuitable water.
With WB.coffee Filtered & Mineralised Water, you can experience carefully prepared, competition-inspired brewing water at home — without having to install a filtration system or mix your own mineral concentrates.
Available in two formulations, developed for espresso and filter coffee, our ready-to-use water makes it easy to explore how water chemistry influences the flavour in your cup.
Perfect for home baristas, specialty coffee enthusiasts, sensory training and anyone curious about getting more flavour from their coffee.
🎁 Better Coffee Starts With a Better Bundle!
Buying coffee, a grinder, espresso machine or filter brewing equipment? Include the right water in your setup!
At WB.coffee, we help you build a complete brewing solution around your equipment, coffee preferences and budget.
Combine our mineralised water with:
- ☕ Freshly roasted WB.coffee specialty coffee.
- ⚙️ An espresso machine, grinder or filter brewer.
- 💧 Water testing, filtration and mineralisation accessories.
- 🎯 Precision scales, filters and brewing tools.
- 🎓 A hands-on brewing workshop or sensory tasting.
👉 Request your personalised, non-binding bundle quotation for our best combined offer, including suitable water, coffee, accessories and shipping.
💧 Why Water Chemistry Matters
Water isn't simply a neutral carrier for coffee flavour.
The concentration and balance of dissolved minerals influence both the extraction process and how the finished coffee tastes.
🔬 Minerals, Extraction & Flavour
- Magnesium (Mg²⁺) — can influence the extraction of flavour compounds and the perceived intensity of the brew.
- Calcium (Ca²⁺) — contributes to water hardness and can affect extraction, while excessive levels increase the risk of scale formation.
- Bicarbonate (HCO₃⁻) — provides alkalinity, buffering coffee acids and influencing perceived acidity and balance.
- Overall mineral content — affects extraction behaviour, sensory characteristics and equipment compatibility.
Too much alkalinity can mute the lively acidity of delicate specialty coffees. Excessive hardness may increase scale formation, while extremely low-mineral water can produce an unbalanced cup and may be unsuitable for certain machines.
The goal isn't simply soft water. It's an appropriate balance of minerals for your coffee and brewing method.
☕ Choose Your Water — Espresso or Filter
We offer two different mineralisation profiles to suit your brewing method.
🔥 Espresso Water
Designed for espresso preparation, where high brewing temperatures, pressure and concentrated extraction make water chemistry especially important.
Suitable for reservoir-fed espresso machines, subject to the manufacturer's water-quality requirements.
Ideal for:
- Traditional espresso.
- Modern specialty espresso.
- Cappuccino and other milk-based drinks.
- Comparing extraction recipes and pressure profiles.
- La Marzocco, EMC, Rocket, Vibiemme, Lelit, Sage, Fellow, Decent, Gaggia or any espresso machine.
- Capsule machines like nespresso and fully automatic bean to cup machines like Jura, Siemens, Miele
🍃 Filter Coffee Water
Developed for filter brewing, where water composition can have a particularly noticeable influence on clarity, sweetness and acidity.
Ideal for:
- Pour-over brewing with V60, ORIGAMI and other drippers.
- Moccamaster, Aiden, xBloom and automatic filter brewers.
- AeroPress, Pulsar, Aeropress, ESPRO and immersion brewing.
- Cupping, sensory evaluation and recipe development.
👃 CoffeeNose recommendation: Try the same coffee with your usual water and our mineralised brewing water, using identical recipes. The differences can be surprisingly revealing.
👃 CoffeeNose Tip — Change the Water, Not the Coffee
Before changing your grinder, brewer or espresso recipe, consider whether your water is limiting the coffee's potential.
A simple comparison can teach you a lot:
- Brew the same coffee with your usual drinking water.
- Prepare a second brew using WB.coffee mineralised water.
- Keep the coffee dose, grind size, water temperature and brew ratio identical.
- Compare aroma, sweetness, acidity, bitterness, body and aftertaste.
- Repeat the tasting as the coffees cool.
For the most meaningful comparison, use identical brewing equipment and tasting cups.
👃 Sensory insight: Water can change both what gets extracted from the grounds and how you perceive the resulting flavours. A different cup profile doesn't automatically mean a higher extraction yield — or a better coffee. Taste and evaluate the result.
🧼 Before Using Our Mineralised Water in Your Machine
We recommend starting with a clean machine and water reservoir.
If your equipment has previously been used with hard tap water, existing limescale deposits may still affect performance.
Before switching:
- Empty and thoroughly clean your water reservoir.
- Inspect your equipment for existing scale deposits.
- Descale when appropriate, following the machine manufacturer's instructions.
- Rinse the machine thoroughly after cleaning or descaling.
- Fill the reservoir with the appropriate WB.coffee mineralised water.
Important: Mineralised brewing water does not remove existing scale. Descaling should only be performed when suitable for your specific machine and according to its manufacturer's instructions.
For espresso machines with specific conductivity, hardness, alkalinity or water-sensor requirements, verify compatibility before use.
🏡 Ready to Use — No Mixing Required
Our mineralised water is ready to use straight from the container.
No measuring mineral drops, calculating concentrations or preparing separate stock solutions.
Simply pour the water into a clean reservoir or brewing kettle and prepare your coffee.
It is also suitable for drinking, preparing tea and general food preparation.
📦 Available Sizes
| Size | Best suited for |
| 1 litre | First-time tasting, sensory comparisons, travel and occasional brewing |
| 5 litres | Regular home brewing, espresso machines and filter coffee setups |
| 19 litres | Frequent brewing, high-volume home use, training and larger coffee setups |
🚰 Useful Emergency Backup Water
Keeping a container of drinking water at home is also practical when your usual water supply is temporarily unavailable.
Our mineralised water can serve as a convenient backup for drinking, making tea, preparing coffee or cooking.
Store sealed containers in a cool, clean place away from direct sunlight. After opening, keep the container closed and use clean dispensing equipment to avoid contamination.
📦 Product Specifications
| Specification | Details |
| Brand | WB.coffee |
| Product | Filtered & Mineralised Water for Coffee |
| Available profiles | Espresso / Filter |
| Available volumes | 1 L / 5 L / 19 L |
| Format | Ready-to-use drinking and brewing water |
| Primary application | Espresso and filter coffee |
| Other applications | Tea, drinking and cooking |
| Compatible brewing methods | Reservoir-fed espresso and filter machines, manual brewers and kettles, subject to equipment requirements |
| Preparation | No dilution or additional mineralisation required |
| Storage | Cool, clean location away from direct sunlight |
💚 Why We Like It at WB.coffee
👃 As a sensory specialist, the CoffeeNose considers water one of the most important — and most underestimated — variables in coffee preparation.
We spend considerable time discussing coffee origin, processing, roasting, grinding and extraction, yet the water used for brewing can have an equally important influence on the final flavour.
Our ready-to-use mineralised water makes it possible to explore that influence without investing immediately in a filtration or remineralisation system.
It's also a practical tool for comparing coffees under more consistent brewing conditions.
Better water doesn't automatically make every coffee better. But suitable, consistent water makes it much easier to understand what your coffee is capable of.
📍 Taste the Difference @ Amsterdam Coffee Lab
Curious whether changing your brewing water will make a noticeable difference?
Visit Amsterdam Coffee Lab in Weesp, near Amsterdam, and ask about our mineralised brewing water.
We can help you choose a suitable formulation for your brewing equipment and preferred coffees.
👃 Drop by for a taste or ask for personalised advice.
🥡 Specialty coffee from the tasting menu @ Amsterdam Coffee Lab.
Explore selected brewing equipment and accessories through Try Before You Buy* — appointments recommended.
🛒 Complete Your Brewing Setup
