What type of flour is used most often in pie dough and why is it used?

• A. All-purpose flour because it provides balanced structure
• B. Bread flour because its high protein strengthens crust
• C. Pastry flour because it is low in protein and makes pie tender
• D. Whole wheat flour to add flavor

Answer: (C)

Pie dough should be tender and delicate, with a light, flaky texture. The amount of gluten that forms in dough depends on the flour’s protein content, and less gluten means a more tender crust. Pastry flour has lower protein content than all-purpose or bread flour, so it develops less gluten when mixed. That results in a crust that stays tender rather than becoming tough, which is exactly what you want for pie. Keeping ingredients cold and mixing just until they come together helps preserve small fat pockets, which create flakiness during baking. In contrast, all-purpose flour provides more structure, bread flour would make the crust tougher, and whole wheat adds flavor and can alter texture. So pastry flour is used most often to achieve a tender, workable pie crust.