What protein-rich flour is typically used to improve bread structure?

• A. All-purpose flour
• B. Bread flour (higher gluten-forming protein content)
• C. Cake flour
• D. Whole wheat flour

Answer: (B)

Gluten formation is what gives bread its structure. When flour with higher gluten-forming protein is mixed with water and kneaded, it develops a strong, elastic network that can trap gas produced by yeast, allowing the dough to rise and hold its shape with a desirable crumb and chew.

Bread flour contains the most gluten-forming protein among common flours, so it builds a stronger gluten network. This leads to better dough strength, gas retention, and oven spring, producing a loaf with a firmer, well-structured crumb. All-purpose flour has less protein and won’t develop as robust a structure. Cake flour has very low protein, yielding a tender, fragile crumb, and whole wheat flour, while it has protein, introduces bran that can interrupt gluten development and make the crumb denser. For a bread with reliable structure, bread flour is the typical choice.