The process prepares a baking surface to prevent food from sticking and to enhance its durability. It involves applying a thin layer of oil to the surface and heating it at a high temperature. This creates a polymerized layer that acts as a non-stick barrier and protects the material from cracking or absorbing unwanted flavors. For example, repeatedly coating a porous baking implement with oil and subjecting it to heat treatments creates a darkened, slick surface ideal for baking.
This procedure is vital for extending the lifespan of baking surfaces and improving baking performance. The polymerized oil layer prevents food from adhering, ensuring easy removal and clean-up. Furthermore, it helps distribute heat more evenly, resulting in consistently baked goods. Historically, this practice has been essential in maintaining the integrity of various baking tools, particularly those made from absorbent materials, thus ensuring their long-term usability.