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Saccharomyces cerevisiae (/ ˌ s ɛr ə ˈ v ɪ s i. iː /) (brewer's yeast or baker's yeast) is a species of yeast (single-celled fungal microorganisms). The species has been instrumental in winemaking, baking, and brewing since ancient times. It is believed to have been originally isolated from the skin of grapes.
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).
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 ...
This causes the dough to expand or rise as gas forms pockets or bubbles. When the dough is baked, the yeast dies and the air pockets "set", giving the baked product a soft and spongy texture. The use of potatoes, water from potato boiling, eggs, or sugar in a bread dough accelerates the growth of yeast. Most yeasts used in baking are of the ...
The sponge's fermentation time depends on its temperature and that of the surrounding area, the ingredients used, and the percentage amount of yeast. It ferments in a humid environment at 74–78 °F (23–26 °C), where it may rise and expand to 4-5 times its original volume, when it falls it has reached 66-70% of its allotted time.
Lowering the temperature of the dough produces a slower, longer rise with more varied fermentation products, resulting in more complex flavors. In sourdough bread-making, cold decreases the activity of wild yeast relative to the Lactobacilli, [13] which produce flavoring products such as lactic acid and acetic acid. [14]
Parbaking is a cooking technique in which a bread or dough product is partially baked and then rapidly frozen for storage [1] or assembled into a final product. It has been used to increase the mass manufacture and distribution of bread products, including bagels. [2] When parbaking is used to bake bread, it increases the shelf life of the loaf ...
The Chorleywood bread process (CBP) is a method of efficient dough production to make yeasted bread quickly, producing a soft, fluffy loaf. Compared to traditional bread-making processes, CBP uses more yeast, added fats, chemicals, and high-speed mixing to allow the dough to be made with lower-protein wheat, and produces bread in a shorter time.