Ingredients of Yeast Breads
Yeast feeds on the sugar contained with the dough, producing carbon dioxide and alcohol, in a process called fermentation. During bread making, the dough is left in a warm place. The warmth causes fermentation to take place.
Salt regulates the rate of yeast activity, providing a slow, steady rise. This allows the yeast to develop the characteristic bread flavor. Salt strengthens the gluten structure of the dough, not allowing the trapped carbon dioxide bubbles to expand too quickly.
To live and grow, yeast needs moisture, warmth, food and nutrients. Commercial yeast is manufactured on an aerated suspension of molasses. Molasses, a form of sugar, provides the food for the yeast so it can reproduce.
The main difference between the bread machine and active dry yeast comes about when mixing yeast with other ingredients. ... When using bread machine yeast, you have to give the dough two rises before baking. Active dry yeast, on the other hand, requires proofing or mixing the yeast with water to activate them.
There are three different methods for mixing the ingredients for yeast breads: The Straight Dough Method, The Modified Straight Dough Method, and The Sponge Method. The straight dough method is the easiest of all of the bread mixing methods.
How will Kenia know if she has a quality yeast product? The product will have risen well. The product will be brown. ... Quick breads use baking soda or baking powder as a leavening agent, but yeast breads use yeast to leaven.
Mixing has three main purposes: To combine ingredients into a uniform, smooth dough. To distribute the yeast evenly throughout the dough. To develop the gluten.
If you want to successfully substitute the yeast called for in a recipe, you just need to swap in the right amount of baking soda and acid to make the dough rise. You can use lemon juice, buttermilk, or milk combined with an equal part of vinegar as your acid.
When you add yeast to water and flour to create dough, it eats up the sugars in the flour and excretes carbon dioxide gas and ethanol — this process is called fermentation. The gluten in the dough traps the carbon dioxide gas, preventing it from escaping. The only place for it to go is up, and so the bread rises.
Once reactivated, yeast begins feeding on the sugars in flour, and releases the carbon dioxide that makes bread rise (although at a much slower rate than baking powder or soda). Yeast also adds many of the distinctive flavors and aromas we associate with bread.
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