Originally Posted by Joe028
BeerSmith has me doing 2 “rounds” of sparging I assume because the amount of sparge water plus grain won’t fit in a 5 gallon cooler. For those of you with the 5 gallon cooler do you do this, or do you mash with more water to lessen the amount of sparge water needed? I have read so much more about doing just one sparge and am a little weary about 2 separarate sparges.
I'm new to AG brewing, but I did a lot of research on it before attempting it the first time... specifically, I read a lot about batch sparging.
Every source source I found said that you want your initial run-off volume and your batch sparge run-off volumes to be equal.
At first, I thought this implied that you needed to do one round of sparging. However, some other sources I read indicated that you want your initial run-off to be half of the total volume, and your sparge run-off (which can
be done in multiple batches) to make up the other half of the volume.
This is a moot point for me b/c I have a 10 gallon cooler, but from what I have read you should be OK doing multiple rounds of sparging.
Here's a quote from http://hbd.org/cascade/dennybrew/
Originally Posted by dennybrew
R1=initial runoff volume which = mash water volume - water absorbed by grain
(assumed to be .1 gal./lb. for this example since that’s the way my system works...use your own figure)
S= batch sparge water volume
V= total boil volume (amount in needed in kettle for boil)
I=volume of infusions for a step mash
R1+I+S(1)+S(2)+S(etc.) must equal V