For the last few days, every time I've opened the fridge, I've been accosted with a foul smell. I've recently cleaned out the fridge and knew that it wasn't due to any manky leftovers, so came to the conclusion that it was my sourdough starter. When I pulled it out of the fridge, it was really smelly, and had a dark layer on top. I removed the top layer and kept a third of the White starter underneath, fed it up and baked a loaf today. The bread turned out well and my starter smells much better, so I will purservere.