I'm new to brewing, have done a few batches so far with a 35L Brewzilla, have carboys, fermzilla setup. No solid temp control, ambient 17-19.
Problem with Fermentation.
Recipe: DavidH. Kolsh. On BrewFather app.
Brew day was good, recalibrated hops, and came in OG at 1.041, added recipe...