I know this is a few weeks later after your post. I just picked my 80 vines of Barbera yesterday. Brix was 26.5 and PH 3.10. 35 gals of must.
I’m in El Dorado Hills and my 6 year old vines are finally making into September. The first year we picked, 2020, my PH was 2.90. I added a little...