Finally trying to get my head around water chemistry after a decade. Playing with Martin’s program and have a quick question. I batch Sparge. Are usually start at 8.5 gallons pre-boil volume for my IPA. Typically strike with 6 gallons. I try to get out about 4.25 gallons. While I am mashing I heat about 5gal of sparge water, and then just adjust depending on how much I get out of my first runnings. Sometimes I pour off a gallon and sparge with 4g, sometimes 4.25g, depending on my first runnings volume. So the question is, on the water adjustments page I would put mash volume of 6g, but would I then put Sparge volume of 5g and do the additions with the whole 5 gallons even knowing I would possibly only use 4 gallons? Or does that throw off of the calculations?
Thanks.