I've put down a Chris' British Ale in my fermzilla allrounder. I'm doing this in a chest freezer with a temp controller set to 17 degrees. The temp probe is sitting in a container (with water) where I've set my blow off tube. According to the temp controller my fermenting temp has fluctuated between 14 and 16 degrees. As I'm using a Nottingham yeast this is not a worry and the initial start up showed a good level of krausen. This has now subsided and I am wondering how long to let this fully ferment. The last time I brewed this beer two weeks was enough but I wonder if I need to ferment this for a longer time. Can I leave this for a month?