Why do you refrigerate crepe batter?

Refrigerating crepe batter allows the flour to fully hydrate, resulting in a smoother texture and better consistency. It also gives the gluten time to relax, which helps prevent the crepes from becoming tough during cooking. Additionally, chilling the batter can enhance the flavor as it melds together, leading to tastier crepes. Overall, refrigeration improves both the texture and taste of the final product.