Beer Fermentation PhasesLag PhaseOnce yeast is added to the wort, it enters what we call the lag phase. Although there are no obvious signs of fermentation during this phase, there is still something going on. The yeast is absorbing oxygen from the wort and producing sterols, which are essential for

Once the wort has cooled to the correct temperature, generally between 18 and 22 ºC (65 to 71 degrees Fahrenheit), it can be transferred to the fermentation vessel. The wort then needs to be aerated to introduce oxygen. This typically takes about ten minutes.Once the yeast has been added to the wort