If you don't grease the loaf pan when baking bread, several things can occur:
Sticking: The dough may stick to the sides and bottom of the pan, making it difficult to remove the bread once it's baked. This can result in a damaged or misshapen loaf.
Uneven browning: Greasing the pan helps distribute heat evenly and promotes a consistent browning of the crust. Without greasing, the bread may brown unevenly or have a patchy appearance.
Texture issues: Greasing the pan can help prevent the dough from sticking, allowing it to rise and expand freely during baking. Without greasing, the dough may struggle to rise properly, leading to a denser texture.
Difficulty in slicing: If the bread sticks to the pan, it can be challenging to slice it neatly without tearing or deforming the loaf.
To avoid these issues, it's generally recommended to grease the loaf pan before adding the dough. You can use butter, oil, or cooking spray to grease the pan's interior. This creates a non-stick surface, promotes even baking, and makes it easier to remove the baked bread from the pan once it's done.