Next month, I would like to brew and Altbier style ale. As I've been reading, this is essentially an Ale fermented at cool temperature to achieve lager like qualities. I have a question pertaining to the fermentation temperature. I started monitoring the temperature in my fridge, and as far as I can measure, it won't go any higher than 48 deg F. I was planning on using either the WLP029 or Wyeast 2565 which are both kolsch yeast but come also recommended for Altbier. Is 48 deg too cool for fermentation to occur? I was planning on pitching the yeast at 70 deg, wait a few hours for fermentation to start, and then transfer to fridge knowing that fermentation increase the temperature by 5 or 10 degrees inside the fermentor. What would you guys do?