醸造水計算ツール (Water Calculator)

Brewing Water Calculator

Precise metric water chemistry and mash pH balancing for brewers.

Target Water Goal
Water Volumes & Baseline Chemistry
50 L
Source Water Baseline (ppm / mg/L)
Grain Bill & Mash pH Calculation
Select Grain Type Weight (kg) Color (°L) Distilled Water Mash pH
Total Grain Weight:
0.00 kg (0.0 lbs)
Mash Thickness:
0.00 L/kg (0.00 qt/lb)
Estimated Mash pH: 5.40
🎯 Recommended Mash pH Targets by Style
  • Light & Crisp (Pales, IPAs): Target 5.2 – 5.4 to brighten hop character and create a crisp flavor.
  • Malty Beers & Lagers: Target 5.3 – 5.5 to support balanced conversion and smooth malt profiles.
  • Dark Beers (Stouts, Porters): Target 5.4 – 5.7 to buffer natural dark malt acidity and prevent a sour mash.
💧 Acid Treatment (Optional Mash pH Drop)
Amount (ml)
Concentration (%)
💧 Mash pH 5.40
Required Mineral Additions

Values can be auto-calculated or manually adjusted below.

📉 Lower pH (Acidifying / Hardness Salts)
Gypsum g
CaSO₄
Calcium Chloride g
CaCl₂
Epsom Salt g
MgSO₄
Canning Salt g
NaCl
📈 Raise pH (Alkaline Salts)
Slaked Lime g
Ca(OH)₂
Baking Soda g
NaHCO₃
Water Chemistry Summary (ppm)
Ion Ca²⁺ Mg²⁺ Na⁺ Cl⁻ SO₄²⁻ HCO₃⁻
Target Goal 0 0 0 0 0 0
Estimated Final 0 0 0 0 0 0
Sulfate/Chloride ratio: Balanced (1.0)