A banneton, or proofing basket, helps dough maintain its shape during the final rise, contributing to a well-structured loaf. Alternatives include a bowl lined with a floured cloth or a colander lined with linen.
A banneton serves several crucial purposes in bread baking. Primarily, it provides support for the dough as it undergoes its final proof, preventing it from spreading out and losing its shape. This is especially important for high-hydration doughs, which tend to be quite slack. The banneton's shape is imprinted on the dough, creating a visually appealing pattern on the crust after baking. Furthermore, the material of the banneton, often rattan or wicker, helps to wick away moisture from the surface of the dough, which contributes to a crispier crust. The slight drying of the surface allows for better scoring and oven spring. If you don't have a banneton, you can achieve similar results by using a bowl lined with a heavily floured linen or cotton cloth. The cloth should be smooth and wrinkle-free to avoid unwanted impressions on the dough. A colander lined with a floured cloth also works well, providing support and allowing for some airflow. Ensure the cloth is generously floured to prevent the dough from sticking.
When using a banneton or alternative, always generously flour the inside before placing the dough in. Rice flour is particularly effective as it doesn't absorb moisture as readily as wheat flour, preventing sticking.