Just brewed a 5gallon batch of beer yesterday and have it fermenting in a glass carboy. This afternoon, we noticed that foam was coming out of the airlock. Is this normal? Last time we fermented in a bucket so we did not notice thus.
I took an airlock and cut off the bottom 1/2 " where the slots are . That allows the foam to flow without clogging up your airlock . bad news if it does . Then instead of putting the inside piece in the airlock just stick a vinyl hose over the tube inside the airlock . Place the other end of the hose in a jar of water . This will let that foam bubble into the water jar and not let in air .