E Z Water Calculator...and maybe all water chem calculators

[sborz22]

So,
I have reached batch 15 of my brewing hobby and I had a new "first."

I rebrewed a recipe I used before.

I was ready. I had my notes all set out in front of me and I was only going to tweak one thing. I realized that when I would enter my water profile into the EZ calculator I always used the full amount of the water as "mash water" because I BIAB. Obviously, since the first time brewing this I learned that I of course should not have been mashing 7.25 gallons of water for 8 lbs of malt.

So here comes the issue/question.

When I plugged in the proper 3 gallons of water as mash water and the rest as sparge water my values all changed- this again, still makes sense because of course you would need less of a chem adjustment for 3 gallons compared to 7.25 gallons.

So, then it dawned on me...well what happens to the PH and the chemical composition of the wort AFTER I add back my distilled water during the BIAB "sparge" if you will.

I also know that you can plug in chemical variables for the sparge water and I can simply add chemicals to that but THEN the questions is- how do I add that amount to the mash water composition?

 

[Genuine]

You can just add those water adjustments to the boil. Since you use distilled you don’t need to acidify your sparge. Or you could add what’s needed to your sparge water and use that.

 

[sborz22]

Thanks for the reply.

Just another little question that stem from this:

1) In regard to the chemical additions to the sparge how do I know the final PH and chemical composition? The calculator seems to give me the mash PH and composition but not the final volume composition. It seems logical to just add the chemical values that each chemical imparts but that seems way to simple. And PH wise, I have no idea how to guess that other than a meter.

If I am right in regard to just adding the additions do you typically use the calculator twice? As in once to get the proper PH for the mash and then again to get the proper chemical and PH balance for the actual wort?

Thanks again for the reply, this is really bugging me haha!

You can just add those water adjustments to the boil. Since you use distilled you don’t need to acidify your sparge. Or you could add what’s needed to your sparge water and use that.

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