Detailed Instructions: Given the background description of some cooking related query, summarize the question into a title
Q: I've been reading "The Bread Baker's Apprentice" and all the sourdough bread recipes call for overnight storage in the fridge. Is this really necessary? Can I just leave it out at room temperature and bake it that night? What is the purpose of storing it in the fridge for a night?
A:
Cookbook says to store dough in fridge overnight, why can't I just bake it already?