I have a refrigerator (in the house) and a freezer with a johnson controller. The freezer is in the garage. This weekend I'm brewing a Vienna Lager with S-23. It appears the proper temp zone for fermentation is 48 to 57 degrees. I would use my freezer but highs are expected to be 41 to 57 degrees in the next 10 days. I could use the freezer but risk the cold days bringing the fermenters below required temps. My refrigerator's highest setting (warm) is around 46 to 49 degrees. So I ask for your opinion. Should I ferment in the refrigerator or risk the freezer? I'm thinking about using the refrig and if it doesn't work use Safale US-5 at basement temps (68 degrees).