I brewed my first Czech Pilsner on Tuesday. Saflager S-23 was my yeast and I put it in a starter before the pitch. I had room in the beer fridge so I stuck it in there after I pitched about midnight. The next morning it was bubbling at a steady rate, so I tried to adjust the temperature to keep it at 50F. I kept over-shooting the 50F. Specific gravity was about 1.030. Color was good. Meanwhile all of my kegs kicked on Friday night (Damn You COVID19!). I cleaned lines and put the brew bucket into the kegerator, and set it at 50F. IT STARTED BUBBLING AGAIN! Lagers are mysterious. Am I living proof that it is better to be lucky than smart?