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Baking powder

For baking soda, which is a common ingredient of baking powder, see Sodium bicarbonate. For the stream in Montana, see Baking Powder Creek.
U.S. consumer-packaged baking powder. This particular type of baking powder contains monocalcium phosphate, sodium bicarbonate, and cornstarch.

Baking powder is a dry chemical leavening agent, a mixture of a carbonate or bicarbonate and a weak acid. The base and acid are prevented from reacting prematurely by the inclusion of a buffer such as cornstarch. Baking powder is used to increase the volume and lighten the texture of baked goods. It works by releasing carbon dioxide gas into a batter or dough through an acid–base reaction, causing bubbles in the wet mixture to expand and thus leavening the mixture. The first single-acting baking powder (meaning that it releases all of its carbon dioxide as soon as it is dampened) was developed by food manufacturer Alfred Bird in England in 1843. The first double-acting baking powder, which releases some carbon dioxide when dampened and later releases more of the gas when heated by baking, was developed by Eben Norton Horsford in the U.S. in the 1860s.

Baking powder is used instead of yeast for end-products where fermentation flavors would be undesirable,[1] or where the batter lacks the elastic structure to hold gas bubbles for more than a few minutes,[2] and to speed the production of baked goods. Because carbon dioxide is released at a faster rate through the acid-base reaction than through fermentation, breads made by chemical leavening are called quick breads. The introduction of baking powder was revolutionary in minimizing the time and labor required to make breadstuffs. It led to the creation of new types of cakes, cookies, biscuits, and other baked goods.[3][4]

  1. ^ Matz, Samuel A. (1992). Bakery Technology and Engineering (3 ed.). Springer. p. 54. ISBN 9780442308551. Retrieved 2009-08-12.
  2. ^ McGee, Harold (2004). On Food and Cooking (revised ed.). Scribner-Simon & Schuster. p. 533. ISBN 9781416556374. Retrieved 2009-08-12.
  3. ^ Cite error: The named reference Civitello was invoked but never defined (see the help page).
  4. ^ Cite error: The named reference Brown was invoked but never defined (see the help page).

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