Just got 440lbs of Petit Sirah today. Overall the grapes looked good...no rot. Yielded about 27-29 gallons of must. However... PH 4.15 TA 5.5-6.0 (Morewine kit not so easy to get an exact reading) Brix 22 I'm concerned about the PH. Yes, I calibrated my Lamotte PH meter several times to verify the reading was indeed correct. So, what to do with such a high PH reading? I dusted the lot of it with 1.75 tsp of sodium metabisulfite and plan on inoculating the must tomorrow with BM45. But doubt lingers.