granary flour



Bread is a staple food prepared by baking a dough of flour and water. It may be leavened or unleavened. Salt, fat and a leavening agent such as yeast are common ingredients, though breads may contain a range of other ingredients: milk, egg, sugar, spice, fruit (such as raisins), vegetables (such as onion), nuts (such as walnuts) or seeds (such as poppy seeds). Bread is one of the oldest prepared foods, dating back to the Neolithic era. The development of leavened bread can probably also be traced to prehistoric times.

Fresh bread is prized for its taste, aroma and texture. Retaining its freshness is important to keep it appetizing. Bread that has stiffened or dried past its prime is said to be stale. Modern bread is sometimes wrapped in paper or plastic film, or stored in an airtight container such as a breadbox to keep it fresh longer. Bread that is kept in warm, moist environments is prone to the growth of mold. Bread kept at low temperatures, for example, in a refrigerator, will develop mold growth more slowly than bread kept at room temperature. However, unwrapped bread kept in a typical household refrigerator will turn stale quickly due to the low humidity of the air.



Bread can be served at any temperature ranging from cold to hot. Once baked, it can subsequently be toasted. It is most commonly picked up and eaten with the hands, or sometimes with a knife and fork. It can be eaten by itself or as a carrier for another, usually less compact food. Bread may be dunked or dipped into a liquid (such as beef gravy, olive oil, or sardine pâté), topped with various spreads, both sweet and savory, or serve as the enclosure for the ubiquitous sandwich with any number of meats, cheeses, vegetables or condiments inside.




Bread is one of the oldest prepared foods, dating back to the Neolithic era. The first breads produced were probably cooked versions of a grain-paste, made from ground cereal grains and water, and may have been developed by accidental cooking or deliberate experimentation with water and grain flour. Descendants of these early breads are still commonly made from various grains worldwide, including the Iranian (Persian) lavashs, tabuns, sangaks, Mexican tortilla, Indian chapatis, rotis and naans, Scottish oatcake, North American jonnycake, Middle Eastern pita, and Ethiopian injera. The basic flat breads of this type also formed a staple in the diet of many early civilizations with the Sumerians eating a type of barley flat cake, and the 12th century BC Egyptians being able to purchase a flat bread called ta from stalls in the village streets.

The development of leavened bread can probably also be traced to prehistoric times. Yeast spores occur everywhere, including the surface of cereal grains, so any dough left to rest will become naturally leavened. Although leavening is likely of prehistoric origin, the earliest archaeological evidence is from ancient Egypt. Scanning electron microscopy has detected yeast cells in some ancient Egyptian loaves. However, ancient Egyptian bread was made from emmer wheat and has a dense crumb. In cases where yeast cells are not visible, it is difficult, by visual examination, to determine whether the bread was leavened. As a result, the extent to which bread was leavened in ancient Egypt remains uncertain.





For generations, white bread was the preferred bread of the rich while the poor ate dark bread. However, in most western societies, the connotations reversed in the late 20th century with dark (whole grain) bread becoming preferred as having superior nutritional value while white bread became associated with lower-class ignorance of nutrition.


More recently, and especially in smaller retail bakeries, chemical additives are used that both speed up mixing time and reduce necessary fermentation time, so that a batch of bread may be mixed, made up, risen, and baked in less than 3 hours. Dough that does not require fermentation because of chemical additives is called "no-time bread" by commercial bakers. Common additives include reducing agents such as L-cysteine or sodium metabisulfite, and oxidants such as potassium bromate or ascorbic acid. Often these chemicals are added to dough in the form of a prepackaged base, which also contains most or all of the dough's non-flour ingredients. Using bases and sophisticated chemistry, commercial bakers have made possible the fresh production of imitation artisan and sourdough breads by semi-skilled labor working in smaller shops.


Cultural and political importance of bread

As a foodstuff of great historical and contemporary importance, in many cultures in the West and Near and Middle East bread has a significance beyond mere nutrition. The Lord's Prayer, for example, contains the line 'Give us today our daily bread'; here, 'bread' is commonly understood to mean necessities in general. In Israel the most usual phrase in work related demonstrations is "lekhem, avoda" [bread, work], and during the 1950s, the beatnik community used the term bread as a euphemism for money. The word bread is now commonly used around the world in English speaking countries as a synonym for money (as also is the case with the word dough.) The cultural importance of 'bread' goes beyond slang, however, to serve as a metaphor for basic necessities and living conditions in general. A 'bread-winner' is a household's main economic contributor and has little to do with actual bread-provision, for example. This also goes along with the phrase "putting bread on the table." A remarkable or revolutionary innovation is often referred to as "the greatest thing since sliced bread." In the USSR, Lenin and his fellow Bolsheviks promised "Peace, Land, and Bread," which thereby became a mainstay slogan of Soviet propaganda . In Newfoundland, bread was seen as having the power to protect against fairies. The term "breadbasket" is often used to denote an agriculturally productive region. In Slavic cultures bread and salt is offered as a welcome to all guests. In India, life's basic necessities are often referred to as "roti, kapda aur makan" [bread, cloth and house].


In contrast, in much of Asia rice is much more prominent as a staple and much of the connotations of bread as a cultural symbol of basic necessities are replaced by rice. To the more conservative elderly generations of Chinese in southern China, the appearance of rice on the table is a fundamental constituent of a meal. Meals made of bread, such as a sandwich, however substantial they may be, are considered as only light snacks in the eyes of the elderly generation.



  • Brown bread is made with endosperm and 10% bran. It can also refer to white bread with added colouring (often caramel colouring) to make it 'brown'; commonly labeled in America as "Wheat" bread (as opposed to "Whole Wheat" bread.)
  • Wholemeal bread contains the whole of the wheat grain (endosperm and bran). It is also referred to as 'whole grain' or 'whole wheat' bread, especially in North America.
  • Wheat germ bread has added wheat germ for flavoring.
  • Whole grain bread can refer to the same as 'wholemeal bread', or to white bread with added whole grains to increase its fibre content (i.e. as in "60% whole grain bread").
  • Roti is a whole wheat based bread eaten in India, Pakistan, Afghanistan and some middle east countries. Naan is also a variant of Roti.
  • Rye bread is made with flour from rye grain of variable levels. It is higher in fiber than many common types of bread and is often darker in color and stronger in flavor. In Finland, Baltic States and Russia, rye is popular type of bread.

Composition and chemistry



Flour is always 100%, and the rest of the ingredients are a percent of that amount by weight. Common table bread in the U.S. uses approximately 50% water, resulting in a finely-textured, light, bread. Most artisan bread formulas contain anywhere from 60 to 75% water. In yeast breads, the higher water percentages result in more CO2 bubbles, and a coarser bread crumb. One pound (~ 450 g) of flour will yield a standard loaf of bread, or two French loaves.

Calcium propionate is commonly added by commercial bakeries to retard the growth of molds.



The quantity and quality of the proteins contained in the flour serve as the best indicator of the quality of the bread dough and the finished bread. While bread can be made from all-purpose wheat flour, for quality bread a specialty bread flour, containing more protein, is recommended.

Wheat flour in addition to its starch contains three water-soluble protein groups, albumin, globulin, proteoses, and two non-water soluble protein groups, glutenin and gliadin. When flour is mixed with water the water-soluble proteins dissolve, leaving the glutenin and gliadin to form the structure of the resulting dough. When worked by kneading, the glutenin forms strands of long thin chainlike molecules while the shorter gliadin forms bridges between the strands of glutenin. The resulting networks of strands produced by these two proteins is known as gluten. Gluten development improves if the dough is allowed to autolyse.


Water, or some other liquid, is used to form the flour into a paste or dough. The volume of liquid required varies between recipes, but a ratio of 1 part liquid to 3 parts flour is common for yeast breads while recipes that use steam as the primary leavening method may have a liquid content in excess of one part liquid to one part flour by volume. In addition to water, other types of liquids that may be used include dairy products, fruit juices, or beer. In addition to the water in each of these they also bring additional sweeteners, fats, and/or leavening components.


Leavening is the process of adding gas to a dough before or during baking to produce a lighter, more easily chewed bread. Most bread consumed in the West is leavened. However, unleavened breads have symbolic importance in Judaism and Christianity. Jews consume unleavened bread called Matza during Passover. They are also used in the Christian liturgy when they celebrate the Eucharist, a rite derived from the narrative of the Last Supper when Jesus broke bread with his disciples during a Passover Seder.

Chemical leavening


Chemically-leavened breads are called quick breads and soda breads. This technique is commonly used to make muffins, pancakes, American-style biscuits and sweet breads such as banana bread.

Yeast leavening

Many breads are leavened by yeast. The yeast used for leavening bread is Saccharomyces cerevisiae, the same species used for brewing alcoholic beverages. This yeast ferments carbohydrates in the flour, including any sugar, producing carbon dioxide. Most bakers in the U.S. leaven their dough with commercially produced baker's yeast. Baker's yeast has the advantage of producing uniform, quick, and reliable results, because it is obtained from a pure culture. Many artisan bakers produce their own yeast by preparing a 'growth culture' which they then use in the making of bread. This culture kept in the right conditions will continue to grow and provide leavening for many years.


Many breads are made from a straight dough, which means that all of the ingredients are combined in one step, and the dough baked after the rising time. Alternatively, dough can be made using a pre-ferment, when some of the flour, water, and the leavening are combined a day or so ahead of baking, and allowed to ferment overnight. On the day of the baking, the rest of the ingredients are added, and the rest of the process is the same as that for straight dough. This produces a more flavorful bread with better texture. Many bakers see the starter method as a compromise between the highly reliable results of baker's yeast, and the flavor/complexity of a longer fermentation. It also allows the baker to use only a minimal amount of baker's yeast, which was scarce and expensive when it first became available. Most yeasted preferments fall into one of three categories: poolish or pouliche, a loose-textured mixture composed of roughly equal amounts of flour and water (by weight); biga a stiff mixture with a higher proportion of flour; and pâte fermentée, which is simply a portion of dough reserved from a previous batch. Sourdough (also known as levain or "natural leaven") takes it a step further, creating a pre-ferment with flour and water that propagates naturally occurring yeast and bacteria (usually Saccharomyces exiguus, which is more acid-tolerant than S. cerevisiae, and various species of Lactobacillus.)


The sour taste of sourdoughs actually comes not from the yeast, but from a lactobacillus, with which the yeast lives in symbiosis. The lactobacillus feeds on the byproducts of the yeast fermentation, and in turn makes the culture go sour by excreting lactic acid, which protects it from spoiling (since most microbes are unable to survive in an acid environment). All yeast-leavened breads used to be sourdoughs, and the leavening process was not understood until the 19th century, when with the advance of microscopes, scientists were able to discover the microbes that make the dough rise. Since then, strains of yeast have been selected and cultured mainly for reliability and quickness of fermentation. Billions of cells of these strains are then packaged and marketed as "Baker's Yeast". Bread made with baker's yeast is not sour because of the absence of the lactobacillus. Bakers around the world quickly embraced baker's yeast for it made baking simple and so allowed for more flexibility in the bakery's operations. It made baking quick as well, allowing bakeries to make fresh bread from scratch as often as three times a day. While European bakeries kept producing sourdough breads, in the U.S., sourdough baking was widely replaced by baker's yeast, and only recently has that country (or parts of it, at least) seen the rebirth of sour-vinegar dough in artisan bakeries. According to Alton Brown, host of Food Network's "Good Eats" television show, each region of the world has different strains of lactobacillus, hence the flavor of the bread made from home starters is unique. The San Francisco Bay Area is especially famous for its sourdough breads.



Steam leavening



  • The steam expands and makes the bread rise.

It is actually the main factor in the rise of bread once it has been put in the oven. CO2 generation, on its own, is too small to account for the rise. Heat kills bacteria or yeast at an early stage, so the CO2 generation is stopped.

Bacterial leavening




Fats or shortenings


Bread improvers

Bread improvers are frequently used in the production of commercial breads to reduce the time that the bread takes to rise, and to improve the texture and volume of bread. Chemical substances commonly used as bread improvers include ascorbic acid, hydrochloride, sodium metabisulfate, ammonium chloride, various phosphates, amylase, and protease.

Breads across different cultures


  • In Mexico bread is called pan. Although corn tortillas are the staple bread in most of Mexico, breadrolls in many varieties are an important daily food for city dwellers. Popular breads in Mexico include the bolillo roll and pan dulce. Pan Dolce, which is Spanish for "sweet bread", is primarily eaten at breakfast.
  • In Peru, pan has many variations due to the diversity of Peruvian cuisine. People usually eat Pan de piso, and Pan serrano. There are also some kind of bread made by potatoes, currently popular in the Andes. Bizcochos are sweet bread usually eaten with some butter and hot chocolate.
  • In Spain bread is also called pan, and there are many varieties, about 315. There is a region called Tierra del Pan (literally translated as "Land of the Bread"), located in the province of Zamora, where economy was in the past joined to this activity.
  • In the Philippines, pandesal (or pan de sal; literally, salt bread) is a rounded bread usually eaten by Filipinos during breakfast.
  • Germany prides itself on having the largest variety of breads worldwide. More than 300-500 basic kinds of bread come together with more than 1,000 types of small bread-rolls and pastries. It has been estimated that the basic kinds of bread are so widely varied by more than 16,000 local bakeries that more than 1,000 different breads have been presented at a 2005 Cologne bread show. Germans are worldwide the biggest consumers (per capita) of bread followed by Chile
  • Finland and Russia both have dark, sourdough breads made of rye. Traditional Finnish rye bread is disc-shaped, with a hole in the center for easier storing. These breads have a rougher composition and a stronger taste than wheat bread, and can thus be stored for longer periods of time. Some families may still have leaven they use for baking these bread handed down from generation to the next.
  • In Britain there is a wide variety of traditional bread, often baked in a rectangular tin.
  • In the United States, the most popular bread has traditionally been soft-textured, usually made with milk and slightly sweet, with a thin crust; this is the type that is generally sold ready-sliced in packages. It is usually eaten with the crust, but some eaters or preparers may remove the crust due to a personal preference or style of serving, as for afternoon tea. Some of the softest bread including Wonder Bread, is referred to as "balloon bread". Though white "sandwich bread" is the most popular, Americans are trending towards more whole grain and artisanal breads. Different regions of the country feature native bread varieties including scali (an Italian-style bread made in New England), Native American frybread (a product of hardship, developed during the Indian resettlements of the 19th century), and Jewish rye, a bread commonly associated with delicatessen cuisine. In addition, many foreign styles of bread, particularly the French baguette, the Ashkenazi Jewish bagel, Italian ciabatta, and the Middle Eastern pita bread, have become naturalized in the United States. The San Francisco Bay Area is world-famous for its crusty sourdough.
  • In South Asia (India, Pakistan, etc.), Roti or Chapati, types of flat breads, are commonly used. A variant uses mustard flour rather than white flour. Another variant is Puri, a thin flat bread which is fried rather than baked and puffs up while cooked. Paratha is another variation on Roti. Naan, however, is baked in a Tandoor or clay oven and is rarely prepared at home. White and brown breads are also very common, but not as much as Roti.
  • Jews have traditionally baked challah, a type of egg bread with a thin, hard crust and a soft, well-leavened center. It is made by wrapping plaits of dough and then lightly baking them in an oven. Challah is sometimes sweetened using honey and sometimes includes raisins. During Passover, unleavened bread in the form of various types of matzo is required due to the Biblical injunction to avoid any form of leaven during this time of year. There is some debate within the Jewish community as to whether dairy products are allowed in kosher bread; some authorities maintain that bread must be strictly pareve to avoid combining meat and dairy in the same meal, while others feel it is acceptable as long as a sign of some sort (usually a different loaf shape, but others are known) is baked into the loaf to distinguish it from pareve bread.
  • In Morocco and West North Africa, a round bread which is roughly four inches tall is used to eat most of the Mediterranean's watery cuisine. They also have a thick and chewy fried bread which is smothered in oil before hand. The Rghifa bread is a staple in Morocco's food and consists of several layers of lightly cooked bread.
  • Italy sports many different kinds of bread with its high geographical variability and its long history of political division contributing to the development of widely different breadmaking recipes and traditions. As a rule of thumb breadrolls are much more popular than large loaves and bread has a small quantity of olive oil mixed in the dough to make it softer and more palatable.
  • Focaccia is quite popular in Italy, and is known in Provence as fougasse or as fouace in parts of southern France, the former name is becoming increasingly common and fougasse can now be bought all over France. It is usually seasoned with olive oil and herbs, and often either topped with cheese or stuffed with meat or vegetables. Focaccia doughs are similar in style and texture to pizza doughs.
  • In China the traditional Chinese bread is Mantou, a white flour dough that is mostly eaten in Northern China. Can be eaten deep fried or having meat or lotus ingredients inside them (like Char Siu Bao). The traditional staple food of Southern China is rice, and older or more conservative southern Chinese consider rice to be the most essential element of a meal. Meals made of bread, such as a sandwich, are seen by older people as mere snacks no matter how substantial.
  • In Ireland, it is traditionally held that the end of a loaf of bread (the 'heel' or 'hilt' of the loaf) is the best part of the loaf. Other stories and myths surround this piece of the bread in Irish Mythology. Irish soda bread, developed to make the most of the soft wheat grown in Ireland, is unusual for a European bread in that it is a quick bread, using the reaction of buttermilk and baking soda rather than yeast to rise.
  • There are different types of traditional 'cheese breads' in many countries, including Brazil, Colombia, Italy and Russia.



  • Kaplan, Steven Laurence: Good Bread is Back: A Contemporary History of French Bread, the Way It Is Made, and the People Who Make It. Durham/ London: Duke University Press, 2006. ISBN 978-0-8223-3833-5
  • Cunningham, Marion (1990). The Fannie Farmer cookbook. 13th edition, New York: Alfred A. Knopf. ISBN 0-394-56788-9.
  • Pyler, E. J. (1988). Baking Science & Technology 3rd Ed. vols. I & II. Sosland Publishing Company. ISBN 0-929005-02-3.

See also

External links

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