Originally Posted by ericbreen
Is grist to water ratio important on the second runnings when batch sparging?i used beersmith to figure out my recipe, and couldn't really understand how much water to add after the initial sparge
No, not at all. You can just batch sparge up to your boil volume. What I mean is this- if you get 3 gallons of first runnings, and you need 6.5 gallons for your boil volume, simply sparging with 3.5 gallons if the way to do it.
Some people break that into two additions, some don't. It doesn't really matter, as long as you can thoroughly stir the grainbed/water addition and drain it well.