I have a lager in primary fermentation, with the temp in the fridge around 10C. The fridge smells of fermentation and the bubbler is not level, but I have not seen a single bubble escape from the bubbler.
This is my first lager, so I am not sure if I am doing something wrong, or if this low activity is normal for a cold fermentation.
The starter that I made seemed to be fairly active.
Will a lager ever cause the bubbler to "purr", or is a very slow bubbler activity normal?
(I have not opened the fermenter since brewday last weekend and I have not taken new hydrometer readings either. Will do so tonight.)