starter has blue spots on the surface???
i'm learning the basic sourdough technique as outlined in the "TARTINE" bread book that i recently purchased.
i'd love to be able to master this one... i followed the instructions for making/developing the starter. i used a 50/50 mix of gold medal whole-wheat and all purpose. i mixed it yesterday and it's now been about 24 hours. there is DEFINITELY something going on. it is a little puffy, lots of little bubbles, and looks as i expected. except for one thing...
the surface has little spots of blue-ish color. if they were gray, i wouldn't think anything of it. i suppose they do have a gray tint to them, but i really think i'm seeing blue-ish. the spots are not well defined, but they are definitely uniform over the surface. nothing else looks out of the ordinary (although this is my first time with a sourdough starter).
as of yet, the odor is not very pronounced. it doesn't smell much different than when i started. can anyone tell me if these blue-ish spots are normal???