Step Mash Calculator

Neil Roberts Brewhouse

Step Mash Calculator

So you want to determine how much hot water you need to add to your mash?
No Problem! Update the information in the table below to get your desired temperature.
Description Selected Value Notes
Grain weight lbs
Kettle water volume gallons
Kettle water temperature °F
Step mash heating water volume gallons
Step mash heating water temperature °F
Grain Correction Factor pu (default value should be adequate)
Combined Volume

gallons
Combined temperature

°F




Note: Grain temperature is assumed to be equal to the Kettle water temperature.
For initial mash in, set:
	Kettle water volume = 0 
	Kettle water temperature = grain temperature
	Step mash heating water volume = Water volume in mash tun
	Step mash heating water temperature = Water temperature in mash tun
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