So last year I bought a cool beer fridge for a nice price. Kept my precious babies at a cool temp and lulled me into a false sense of security. Recently, I bought a temperature gun (drunk 3am impulse buy) and noticed that my beers were at around 39-43 degrees. I turned the dial all the way down to keep them from getting that cold, but it doesn't help. It now hovers around 40-43 degrees. Now to my question, I know that it is not below freezing, so that is not a problem, but I do not want my beers to be so cold that the yeast go into a dormant stage and do not continue to develop the beer (this is mainly for my big sour collection). Am I being paranoid, or is that too low of a temp for beer?