Where is sparge temp? RIGHT NOW!!!

Bike N Brew said:

Try this:

Wa = (T2 - T1)(.2G + Wm)/(Tw - T2)
where:
Wa = The amount of infusion (sparge) water added (in quarts, at temp Tw)
Wm = The total amount of water in the mash (in quarts).
T1 = The initial temperature (¡F) of the mash.
T2 = The target temperature (¡F) of the mash.
Tw = The actual temperature (¡F) of the infusion water.
G = The amount of grain in the mash (in pounds).

Or, in the case of batch sparging where you know the amount and want to solve for the sparge water temp:

Tw = [(T2-T1)(.2G + Wm)/Wa] + T2

So for a 10-lb grain bill mashed at 150 with 1.25 qt/lb, where you're adding 2 gal sparge water:

Tw = [(170-150)(0.2*10 + 12.5)/8] + 150 = 187

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FlyGuy said:

Note that if you do a mash-out, you can do this as part of the mash profile. Otherwise, you have to use the tool and input the numbers yourself.

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