Water Chemistry Calculator

Adjust brewing water profiles with mineral salts.

Loading...

Features

Smart Profile Management

Start with RO water or input your local water report. Target specific profiles for any beer style.

Precise Salt Additions

Calculate exact gram additions for Gypsum, Calcium Chloride, Epsom Salt, Baking Soda, and Chalk.

Flavor Balancing

Real-time Sulfate-to-Chloride ratio analysis to dial in "Malty", "Bitter", or "Balanced" character.

Visual Ion Breakdown

Interactive charts showing your current PPM vs target PPM for all essential brewing minerals.

Batch & Sparge Support

Scale calculations seamlessly between different batch sizes and volume units (Gallons/Liters).

Enzymatic Health Check

Automatic warnings if Calcium levels are too low for proper yeast health and enzymatic activity.

About Water Chemistry Calculator

Water is the largest component of beer, yet often the most overlooked. The Water Chemistry Calculator empowers homebrewers to take control of their mineral profile, transforming good beer into world-class beer. Different beer styles require different water chemistries. A crisp Czech Pilsner needs very soft water, while a West Coast IPA benefits from high sulfates to accentuate hop bitterness. This tool eliminates the guesswork by allowing you to: 1. Input your Source Water Report (or use RO/Distilled). 2. Select a Target Profile (or build a custom one). 3. Calculate the precise amount of Brewing Salts needed to hit your numbers. It features real-time calculation of all major ions (Calcium, Magnesium, Sodium, Sulfate, Chloride, Bicarbonate) and provides immediate feedback on the Sulfate-to-Chloride ratio—the key indicator of "Malty" vs "Bitter" balance.

How to Use Water Chemistry Calculator

  • 1
    Batch Details

    Enter your total water volume (Mash + Sparge) to calculate correct concentrations.

  • 2
    Define Source

    Input values from your local water report or leave as 0 if using Reverse Osmosis (RO) water.

  • 3
    Add Salts

    Adjust sliders or enter gram amounts for brewing salts to match your desired profile.

  • 4
    Check Balance

    Monitor the "Flavor Expression" and ion concentrations to ensure they align with your beer style.

Water Chemistry Calculator | Brewing Water Adjustment & Profile Tool