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Fermentation typically begins when viable baker's yeast or a starter culture is added to flour and water. Enzymes in the flour and yeast create sugars, which are consumed by the yeast, which in turn produce carbon dioxide and alcohol. Specifically, the grain enzyme diastase begins to convert starch in the grain to maltose.
Saccharomyces cerevisiae, the yeast commonly used as baker's yeast. Gradation marks are 1 μm apart.. Baker yeast is the common name for the strains of yeast commonly used in baking bread and other bakery products, serving as a leavening agent which causes the bread to rise (expand and become lighter and softer) by converting the fermentable sugars present in the dough into carbon dioxide and ...
Most artisan bread formulas contain anywhere from 60 to 75% water. In yeast breads, the higher water percentages result in more CO 2 bubbles and a coarser bread crumb. Dough recipes commonly call for 500 grams (about 1.1 pounds) of flour, which yields a single loaf of bread or two baguettes.
Bread Flour. Comparing bread flour versus all-purpose flour, the former has the highest protein content of the refined wheat flours, clocking in at up to 14 percent.
Starch gelatinization begins at 105 °F (41 °C), [34] the yeast dies at 140 °F (60 °C), [35] and the baking is finished when the product reaches an internal temperature of 208–210 °F (98–99 °C). [21] Cooling: Once the bread is fully baked, it is removed to racks to cool. Bread is sliced once it has cooled to 95–105 °F (35–41 °C).
The basic method is to mix flour, water, salt, and yeast, allow it to ferment until gluten has developed—generally 12 hours or more, sometimes days when fermenting refrigerated—shape, proof, and bake. This lengthens the time required to produce a loaf of yeast bread, which by a kneaded method generally can be completed in three or four ...
In some countries (mainly Eastern Europe, Baltic and Nordic countries) rye flour is also used to make a starter. Traditional Finnish rye starter consists of only rye flour and water, no sugar or yeast. Some might also use yogurt to help hasten the starter to rise. A flour-to-water ratio of 1-to-1 results in a relatively fluid ferment.
A dough conditioner, flour treatment agent, improving agent or bread improver is any ingredient or chemical added to bread dough to strengthen its texture or otherwise improve it in some way. Dough conditioners may include enzymes , yeast nutrients, mineral salts, oxidants and reductants , bleaching agents and emulsifiers . [ 1 ]