Strike Water Calculator

Formula

To calculate the Strike Water Volume (SW):

\[ SW = \frac{G \cdot (T2 - T1)}{C} \]

Where:

\(SW\) is the Strike Water Volume
\(G\) is the Grain Weight (kg)
\(T2\) is the Target Temperature (°C)
\(T1\) is the Initial Temperature (°C)
\(C\) is the Heat Capacity of Water (J/kg·°C)

What is Strike Water?

Strike water is a term used in the brewing process, specifically in the mashing stage, which refers to the initial volume of water added to the grains. The temperature of the strike water is crucial as it determines the temperature of the mash, which in turn affects the types and quantities of sugars that are extracted from the grains. This is important because these sugars are what the yeast will later ferment into alcohol.

Example Calculation

Let's assume the following values:

Grain Weight (\(G\)) = 5 kg
Target Temperature (\(T2\)) = 75 °C
Initial Temperature (\(T1\)) = 20 °C
Heat Capacity of Water (\(C\)) = 4184 J/kg·°C

Using the formula:

\[ SW = \frac{5 \cdot (75 - 20)}{4184} = \frac{5 \cdot 55}{4184} = \frac{275}{4184} = 0.066 \text{ liters} \]

The Strike Water Volume is 0.066 liters.