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Calcimator

Strike Water Calculator

Calculate the correct strike water temperature and volume for your mash based on grain weight, target mash temperature, and grain temperature.

Inputs

lbs
°F
°F
qt/lb

Results

Strike Water Temperature

165.4 °F

Water Volume13 quarts
Water Volume3.25 gallons
How to Use This Calculator
  1. Enter grain weight in lbs and your target mash temperature (°F).
  2. Set grain temperature (room temperature is fine for most situations).
  3. Adjust water-to-grist ratio (qt/lb) — 1.25–1.5 qt/lb is standard.
  4. Review Strike Water Temperature and Water Volume (gallons) needed for the mash.

How the result changes with Target Mash Temperature

Target Mash TemperatureStrike Water Temperature
143155 °F
149161.9 °F
156170 °F
163178.1 °F

What each input means

Grain Weight
Total weight of the grain bill in pounds.
Target Mash Temperature
Desired mash rest temperature. 148-150°F for drier beer, 154-158°F for fuller body.
Grain Temperature
Temperature of the crushed grain. Room temperature is typically 65-72°F.
Water-to-Grist Ratio
Quarts of water per pound of grain. 1.25-1.5 is typical; thinner mash (higher ratio) is more forgiving.

How this is calculated

Worked example, using the default values

  1. Identify Input Parameters
    4 parameters
    Grain Weight = 10, Target Mash Temperature = 152, Grain Temperature = 65, Water-to-Grist Ratio = 1.3 = 4 input(s) provided
  2. Calculate Strike Water Temperature
    165.4 = 165.4
  3. Calculate Water Volume
    Water Volume
    13 = 13
  4. Calculate Water Volume
    Water Volume
    3.25 = 3.25

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