So brew day went pretty well. I have two batches of BW with lacto starters added and I am holding them at reasonably stable temps (100-110). After 48hrs I decided to take a sample and the pH is only down to 4.6 and 4.5. The podcast at the NHC I listened to seemed to suggest pH would be plummeting by day 2 or 3. I had purchased a pH meter but unfortunately it didn't show up till yesterday so I was stuck with pH strips on the brew day which were not very helpful. Original wort pH was around 5.2-5.4. I added 1 tsp of 88% lactic acid and kinda chickened out on adding anymore. Repeat pH per test strips was hard to interpret. Would a single tsp of lactic acid added to 11gal of wort drop pH much?
It seemed like there was a fair amount of activity in the airlock (more than expected but not as aggressive as a primary yeast fermentation) so I assume something is going on. Assuming this strain produces some CO2???
Specific Gravity today was roughly unchanged (not sure it is supposed to/expected to change with lacto)
It tastes not the least bit acidic which is frustrating.
So now I am at 48hrs of attempted wort souring, what to do? Wait another 3-4 days? I have a pack of Omega labs lacto so could always pitch that and see what happens. Any advice?