Originally Posted by Franc103
I've been using 100% RO water treated with calcium chloride (per the primer). The method has been working MUCH better than my ultra-high pH mid-Michigan tap water.
I'm curious, though...would you add the Gypsum charge to this mash? Which of the primer water profiles do you think would work best?
Hmmm. I'm drinking one right now (as in right this minute), so that's a great question!
Here are my notes for a 10 gallon batch:
50% RO in mash- 50% tap water. 2 grams gypsum, 3 grams calcium chloride.
Sparge with RO water.
Predicted pH is 5.5. Actual pH was 5.29!
Since my tap water is not the same as yours, the final mash content is here:
I sparged with RO water, so the final water profile was about half that.