Why Do We Need To Knead?

Dennis Weaver

Bread dough is transformed as it is kneaded. It becomes smoother, more elastic. It feels and looks different. Understanding what take place during the kneading process will make you a better baker.


Bread dough needs to be elastic in order to capture the gases created by the yeast, stretch as bubbles form in the dough, expand, and rise. Without that elasticity, bread would not have the open texture we enjoy nor would bread be chewy. But what creates that elasticity?


The endosperm of the wheat contains two important proteins, glutenin and gliadin. When wheat flour is mixed with water, these two proteins link with the water molecules and crosslink with each other as they are physically manipulated by kneading. It takes a certain amount of physical manipulation to bring these molecules into contact and create strong links. As the kneading continues and these molecules create stronger bonds, gluten is formed. If you could see this gluten, you would see tiny strands like two cords twisted together. It is gluten that gives the dough elasticity.


If you watch the dough being mixed with the bread hook in your stationary mixer, you will see changes occur in the dough as the kneading takes place. First the dough will stick to the sides of the bowl. As the bonds become stronger and the dough more elastic, it pulls away from the sides into a drier ball. The sides should become clean. Within four or five minutes at medium speed, the dough will change even more and become elastic as the gluten is completely formed. After you have watched this process a few times, you will be able to recognize the changes in the dough as the gluten forms. If you pinch a portion of the dough and stretch it, it should pull to a thin layer before it breaks. Without that elasticity, bread isn't good bread.


Copyright 2003-2007, The Prepared Pantry (http://www.prepraredpantry.com ). Published by permission

Dennis Weaver is a baker, a recipe designer, and a writer. He has written many baking guides and How to Bake, a comprehensive baking and reference e-book--available free at The Prepared Pantry which sells baking supplies and tools and has a free online baking library.