Low pH, low TA Pinot Grigio

Winemaking Talk - Winemaking Forum

Help Support Winemaking Talk - Winemaking Forum:


Just a Member
Aug 19, 2012
Reaction score
Asking for the esteemed forum members' thoughts on this. I've made fruit wines for several years and just getting my feet wet with grapes.

I got a 6 gallon juice bucket of CA Pinot Grigio which has some strange numbers: pH 3.01, SG 1.088, and TA 0.4%.

I recalibrated my MW102 and retested the TA three times, same result. The raw numbers on the TA test using 0.2 normal sodium hydroxide: 4ml to get pH to 8.2 on 15ml of must.

I also got 3 lugs of Syrah which seems more in line: 1.102, 3.65. TA 0.5%.

I will take suggestions on either one, but I'm particularly interested in thoughts on the PG. My plan was Opti White, QA 23 with as cool a ferment as I can maintain. Having relied mainly on pH for tweaking my fruit wines, I'm thinking I should leave it alone and not try tweaking it, but I thought it couldn't hurt to ask here.

Thanks in advance.


Backwoods, but not backwards...
Sep 18, 2016
Reaction score
North Central Arkansas Ozarks
That pH on the PG is way low! I wonder how green the grapes were when picked. I would definitely ask your source on the PG what's up with those numbers, if your equipment is calibrated and you have confidence in the analysis being accurate.

Latest posts