400lbs. VA detected Friday morning. Immediately racked off sediment and added 50ppm SO2. Two hours later, juice had no VA and tasted fine.
Settled and filtered juice for measurements – temp 20 degrees. Had different numbers in four different 23 L carboys. Two carboys were darker in colour with higher numbers.
Brix: 23.3 to 24.1
ph: 3.72 – 3.88
acid: 4.2 – 4.5
I blended juices: Brix:23.5 Ph: 3.74 acid 4.4
added 2g/l tartaric
Inoculated Friday night. Foaming, activity in airlock, Saturday morning. Smells clean.