Golden Wave has been fermenting for 38 hours now. The wort appears to be very active underneath its blanket of Krausen, which is between 1 and 2 cm thick and a variety of colours, from almost white to a dark beige.

Data from the Tilt tells me that the temperature inside the Fermzilla is 2 ℃ higher than room temperature and still climbing, and since I don’t have a dedicated brew fridge yet I’m switching to pressure fermentation 10 hours earlier than planned in order to limit the production of esters and off flavours. Spunding valve added 09:10, 50 minutes later we’re already at 8 PSI. Capping it at 10 PSI.