Jobe,
I can tell you this: Acid blend
is adding acid. It makes the pH go down. You can see it in my Rosemary-Nutmeg wine. 1 tsp for a 1 gallon carboy makes the pH go down by 0.4 in my case.
You asked:
"If you add acid blend to adjust pH, does that now throw off the acid level off?"
In my very limited knowledge: yes and no. If your pH is fine (whatever that is), then it will throw it off to a more acidic level. If your pH is too high (meaning your wine does NOT have enough acid) it will correct it and give it that acidic character that wines usually have. At least that is what I have read about it.
I've only gotten recently into the pH thing, and I'm totally stuck. I haven't gotten a clear answer from anyone about "what's the target pH" when I have asked them. I sort of like my wines, and I just asked my dad if he thought this or the other wine tasted okay, and he said yeah.
I'm also a total dud in SO2... I know nothing about it, and can honestly say that those titrettes are beyond my abilities to use. I just don't get them, and I honestly don't know
how to interpret the results.
Sorry for the wishy-washy answer, but that's all I know. Now you guys know what a limited-knowledged winemaker I am.
P.S. Thanks for the comment.
Niagara and Concord were from fresh juice from a local vineyard here in the area (
www.debonne.com). The concord is so acidic (obviously) that my mouth puckered.
Edited by: MedPretzel