Salt Must Flow wrote: ↑Thu Nov 23, 2023 3:39 pm
The Citric Acid is to lower the 'initial PH' ideally to 5.2 - 5.6 before pitching yeast. Yeast prefers stability. Stable PH, stable temp, etc... If Citric Acid is not added, the yeast will have to endure a drastic PH drop throughout the first couple days.
Calcium Carbonate is added to buffer the PH. As the PH drops, the Calcium Carbonate keeps the PH from 'crashing' or going so low that the ferment stalls.
OK, thanks for the info Salt, I'll try the citric acid and gypsum in the next batch. Hope the yeast didn't get too stressed during the initial (and continuing) drop.
The pH is about 3 as of this morning if the cheap paper strip is right. Is this ok? Should I correct it?
It's definitely lower than yesterday and in the 3 range. I may have to buy an actual meter to get better accuracy than +/-1 based on a colour guess, lol.
Is there an optimal temperature to ferment at, or just keep it steady and wait for the finish and clearing?
Although there is a lot of discussion on this site about ferment temperature, I couldn't find anything on optimal temperatures for this wash (or others) or for the types of yeast used. Is this a thing?
Sorry for the questions, I have read up on this site and elsewhere, but there is so much information I'm sure I've missed a lot.