Simple remineralized water recipe

Why Remineralized Water?

• Tap water may be too hard (scaling) or too soft (flat flavor).
• Distilled or RO water lacks minerals, leading to poor extraction.
• Adding back the right minerals creates water optimized for brewing.

Key Minerals for Coffee

• Calcium (Ca²⁺): Enhances body and mouthfeel.
• Magnesium (Mg²⁺): Accentuates sweetness and clarity.
• Bicarbonates (HCO₃⁻): Buffering capacity; stabilizes acidity without muting flavors.

Simple DIY Recipe (1 Liter Batch)

• Start with 1 L distilled or RO water.
• Add:
• 0.10 g Epsom salt (MgSO₄·7H₂O) → magnesium.
• 0.20 g baking soda (NaHCO₃) → bicarbonates.
• Stir or shake until fully dissolved.

Target Water Profile

• Magnesium hardness ≈ 40 ppm.
• Alkalinity (as bicarbonate) ≈ 40 ppm.
• Falls within SCA recommended ranges for optimal brewing.

Preparation Tips

• Use a precision scale (0.01 g accuracy).
• Pre-mix larger concentrates (100× strength) in dropper bottles for convenience.
• Store solutions in sealed, food-safe containers.

Safety & Practical Notes

• Always label mineral solutions clearly.
• Do not exceed recommended concentrations—too much bicarbonate flattens flavor.
• Experiment with slight adjustments to match roast style and preference.

Summary

A simple remineralized water recipe with Epsom salt and baking soda produces balanced brewing water. This low-cost DIY approach helps achieve better extraction, sweetness, and clarity in home coffee brewing.

• Tags:
• Coffee Brewing
• Sweetness Clarity
• Low Cost
• Brewing Water
• Roast Style
• Practical Notes
• Food Safe
• Buffering Capacity
• Scale Accuracy
• Flat Flavor