New answers tagged lager
Take a gravity reading. Visual inspection doesn't tell you much about whether fermentation is happening or not.
Assuming that your yeast was alive, 45F is a bit on the cold side to start. I would bring it into the house to get it to "go off", and then take it back to your cold room once it starts fermenting.You may also have "shocked" the yeast if your wort was a bit hot when you pitched. If so, there may not have been as much viable yeast left, and it would take a ...
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