brewed a lager on 5/23/20, wlp830 pitched cold @46F and let it warm up to 48-49F, fermentation was visible by 5/25 so i let it ride at 48-49F for 7 days, yeast activity (swirling around),krausen still visible today 6/2, yesterday i pulled the probe off the side of the fermenter and dialed up my temp controller to 55F gonna leave it for another few days before increasing temp again to 60F, question is, should i have waited to raise the temp once the activity was slower, i know i should have checked gravity but been real busy lately so i took a leap of faith
I agree, but lately I have been using a Tilt hydrometer and it has taken away almost all concerns about when to ramp or allow it to rise to 60 or so to finish. Many brewers would be surprised how quickly fermentation nears completion. It allows for subtle lager experiments with spunding, as well or late pressure fermenting in primary.
I have found that 3 packs of S-189 (33 grams total) in 10 gallons (approx. 40 liters) of wort will finish in about 5 days at mid 50’sF, with rise to 62F allowed at or about 3-5 points of expected FG. YMMV