Baking
Baking is the crucial process that transforms dough into a finished loaf of bread through exposure to high temperatures. This stage triggers a series of chemical and physical reactions, resulting in the delightful texture and flavor we associate with freshly baked bread. Here’s what happens during baking:
- Yeast Activity & Oven Spring: As the dough heats up, yeast activity increases, leading to a rapid production of carbon dioxide. This phase, known as oven spring, causes the loaf to rise significantly.
- Protein Coagulation: With rising temperatures, the proteins in the dough, particularly gluten, coagulate, providing the bread with its desired structure and firmness.
- Starch Gelatinization: Starches in the dough absorb moisture and swell, leading to gelatinization. This process is essential for creating the crumb structure of the bread.
- Caramelization & Maillard Reaction: The crust develops its golden-brown color due to caramelization of sugars and the Maillard reaction between amino acids and reducing sugars. These reactions enhance both the appearance and the rich flavors of the bread.
- Evaporation of Acids: Some acids formed during fermentation evaporate at specific temperatures during baking, subtly altering the final flavor profile. Longer baking times can reduce tanginess by concentrating the flavors.
- Moisture Evaporation: Water in the dough transforms into steam, aiding in oven spring and starch gelatinization while contributing to the overall texture.
- Crust Formation: The outer layer of the dough hardens and dries out, forming a crust that protects the moist inner crumb, ensuring a delightful contrast in texture.