A biennial plant is a flowering plant that, generally in a temperate climate , takes two years to complete its biological life cycle .
63-548: Caraway , also known as meridian fennel and Persian cumin ( Carum carvi ), is a biennial plant in the family Apiaceae , native to western Asia, Europe, and North Africa. The etymology of "caraway" is unclear. Caraway has been called by many names in different regions, with names deriving from the Latin cuminum ( cumin ), the Greek karon (again, cumin), which was adapted into Latin as carum (now meaning caraway), and
126-462: A 100 grams (3.5 oz) reference amount, caraway seeds are a rich source (20% or more of the Daily Value , DV) of protein , B vitamins (24–33% DV), vitamin C (25% DV), and several dietary minerals , especially iron (125% DV), phosphorus (81% DV), and zinc (58% DV) (table). When ground , caraway seeds yield up to 7.5% of volatile oil , mostly D-carvone , and 15% fixed oil of which
189-518: A 14,500-year-old Natufian site in Jordan's northeastern desert. Around 10,000 BC, with the dawn of the Neolithic age and the spread of agriculture, grains became the mainstay of making bread. Yeast spores are ubiquitous, including on the surface of cereal grains , so any dough left to rest leavens naturally. An early leavened bread was baked as early as 6000 BC in southern Mesopotamia, cradle of
252-453: A certain amount of applied force. Because air pockets within this gluten network result from carbon dioxide production during leavening, bread can be defined as a foam, or a gas-in-solid solution. Acrylamide , like in other starchy foods that have been heated higher than 120 °C (248 °F), has been found in recent years to occur in bread. Acrylamide is neurotoxic , has adverse effects on male reproduction and developmental toxicity and
315-408: 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 . Calcium propionate is commonly added by commercial bakeries to retard the growth of molds. Flour is grain ground into a powder. Flour provides the primary structure, starch and protein to the final baked bread. The protein content of the flour
378-406: 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 a portion of dough reserved from a previous batch. Sourdough is a type of bread produced by a long fermentation of dough using naturally occurring yeasts and lactobacilli . It usually has a mildly sour taste because of
441-437: A meadow, the seeds were formerly offered on a tray by publicans to people who wished to disguise the odour of their drinker's breath. Biennial plant In its first year, the biennial plant undergoes primary growth, during which its vegetative structures (leaves, stems, and roots) develop. Usually, the stem of the plant remains short and the leaves are low to the ground, forming a rosette . After one year's growing season,
504-475: A second year to run to seed. Examples of biennial plants are members of the onion family including leek , some members of the cabbage family, common mullein , parsley , fennel, Lunaria , silverbeet , black-eyed Susan , sweet William , colic weed , carrot , and some hollyhocks . Plant breeders have produced annual cultivars of several biennials that will flower the first year from seed, for example, foxglove and stock . Bread Bread
567-412: A special taste or texture. At one time, all yeast-leavened breads were sourdoughs. Recently there has been a revival of sourdough bread in artisan bakeries. Traditionally, peasant families throughout Europe baked on a fixed schedule, perhaps once a week. The starter was saved from the previous week's dough. The starter was mixed with the new ingredients, the dough was left to rise, and then a piece of it
630-483: A strict two-year life cycle and the majority of plants in the wild can take 3 or more years to fully mature. Rosette leaf size has been found to predict when a plant may enter its second stage of flowering and seed production. Alternatively, under extreme climatic conditions, a biennial plant may complete its life cycle rapidly (e.g., in three months instead of two years). This is quite common in vegetable or flower seedlings that were vernalized before they were planted in
693-571: Is carcinogenic . A study has found that more than 99 percent of the acrylamide in bread is found in the crust. A study by the University of Hohenheim found that industrially produced bread typically has a high proportion of FODMAP carbohydrates due to a short rising time (often only one hour). The high proportion of FODMAP carbohydrates in such bread then causes flatulence . This is particularly problematic in intestinal diseases such as irritable bowel syndrome . While in traditional bread making
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#1732798303408756-474: Is 30–60 cm (12–24 in) tall, with small white or pink flowers in compound umbels composed of 5–16 unequal rays 1–6 cm (0.4–2.4 in) long. Caraway fruits , informally called seeds , are smooth, crescent -shaped, laterally compressed achenes , around 3 mm ( 1 ⁄ 8 in) long, with five pale ridges and a distinctive pleasant smell when crushed. It flowers in June and July. Caraway
819-567: Is a staple food prepared from a dough of flour (usually wheat ) and water , usually by baking . Throughout recorded history and around the world, it has been an important part of many cultures' diet. It is one of the oldest human-made foods, having been of significance since the dawn of agriculture , and plays an essential role in both religious rituals and secular culture. Bread may be leavened by naturally occurring microbes (e.g. sourdough), chemicals (e.g. baking soda), industrially produced yeast , or high-pressure aeration, which creates
882-466: Is a good source of carbohydrates and micronutrients such as magnesium, iron, selenium, and B vitamins. Whole grain bread is a good source of dietary fiber and all breads are a common source of protein in the diet, though not a rich one. Bread crust is formed from surface dough during the cooking process. It is hardened and browned through the Maillard reaction using the sugars and amino acids due to
945-578: Is consumed as a winter root vegetable in some places, similar to parsnips . Caraway fruits are found in diverse European cuisines and dishes, for example sauerkraut , and the United Kingdom 's caraway seed cake . In Austrian cuisine , it is used to season beef and, in German cuisine , pork. In Hungarian cuisine , it is added to goulash , and in Norwegian cuisine and Swedish cuisine , it
1008-609: Is leavened by Clostridium perfringens , one of the most common sources of food-borne illness. Aerated bread is leavened by carbon dioxide being forced into dough under pressure. From the mid-19th to mid-20th centuries, bread made this way was somewhat popular in the United Kingdom, made by the Aerated Bread Company and sold in its high-street tearooms . The company was founded in 1862, and ceased independent operations in 1955. The Pressure-Vacuum mixer
1071-404: Is most commonly eaten with the hands, either by itself or as a carrier for other foods. Bread can be spread with butter , dipped into liquids such as gravy , olive oil , or soup ; it can be topped with various sweet and savory spreads, or used to make sandwiches containing meats , cheeses, vegetables, and condiments . Bread is used as an ingredient in other culinary preparations, such as
1134-463: Is one of the oldest prepared foods. Evidence from 30,000 years ago in Europe and Australia revealed starch residue on rocks used for pounding plants. It is possible that during this time, starch extract from the roots of plants, such as cattails and ferns , was spread on a flat rock, placed over a fire and cooked into a primitive form of flatbread . The oldest evidence of bread-making has been found in
1197-532: Is planted in the winter as an annual. In temperate climates, it is planted as a summer annual or biennial. It is widely established as a cultivated plant. The Netherlands, Poland and Germany are the top caraway producers. Finland supplies about 28% (2011) of the world's caraway production from some 1500 farms, the high output occurring possibly from its favorable climate and latitudes, which ensure long summer hours of sunlight. Caraway seeds are 10% water, 50% carbohydrates , 20% protein , and 15% fat (table). In
1260-427: Is the best indicator of the quality of the bread dough and the finished bread. While bread can be made from all-purpose wheat flour, a specialty bread flour, containing more protein (12–14%), is recommended for high-quality bread. If one uses a flour with a lower protein content (9–11%) to produce bread, a shorter mixing time is required to develop gluten strength properly. An extended mixing time leads to oxidization of
1323-418: Is the most important measurement in a bread recipe, as it affects texture and crumb the most. Hard wheat flours absorb about 62% water , while softer wheat flours absorb about 56%. Common table breads made from these doughs result 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 CO 2 bubbles and
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#17327983034081386-498: Is the process of adding gas to a dough before or during baking to produce a lighter, more easily chewed bread. Most bread eaten in the West is leavened. A simple technique for leavening bread is the use of gas-producing chemicals. There are two common methods. The first is to use baking powder or a self-raising flour that includes baking powder. The second is to include an acidic ingredient such as buttermilk and add baking soda ;
1449-549: Is used as a spice in breads , especially rye bread . A common use of caraway is whole as an addition to rye bread – often called seeded rye or Jewish rye bread (see Borodinsky bread ). Caraway seeds are often used in Irish soda bread and other baked goods. Caraway may be used in desserts , liquors , casseroles , and other foods. Its leaves can be added to salads, stews, and soups, and are sometimes consumed as herbs, either raw, dried, or cooked, similar to parsley . The root
1512-525: Is used for making caraway black bread. Caraway oil is used to for the production of Kümmel liquor in Germany and Russia, Scandinavian akvavit , and Icelandic brennivín . Caraway can be infused in a variety of cheeses, such as havarti and bondost to add flavor. In Latvian cuisine , whole caraway seeds are added to the Jāņi sour milk cheese . In Oxford , where the plant appeared to have become naturalised in
1575-476: The Americas , Australia , and Southern Africa . This is in contrast to parts of South and East Asia, where rice or noodles are the staple. Bread is usually made from a wheat - flour dough that is cultured with yeast, allowed to rise, and baked in an oven . Carbon dioxide and ethanol vapors produced during yeast fermentation result in bread's air pockets. Owing to its high levels of gluten (which give
1638-461: The Sanskrit karavi , sometimes translated as "caraway", but other times understood to mean " fennel ". English use of the term caraway dates to at least 1440, possibly having Arabic origin. The plant is similar in appearance to other members of the carrot family, with finely divided, feathery leaves with thread-like divisions, growing on 20–30 cm (8–12 in) stems. The main flower stem
1701-553: The Sumerian civilization, who may have passed on the knowledge to the Egyptians around 3000 BC. The Egyptians refined the process and started adding yeast to the flour . The Sumerians were already using ash to supplement the dough as it was baked. There were multiple sources of leavening available for early bread. Airborne yeasts could be harnessed by leaving uncooked dough exposed to air for some time before cooking. Pliny
1764-564: The lactic acid produced during anaerobic fermentation by the lactobacilli. Longer fermented sourdoughs can also contain acetic acid , the main non-water component of vinegar. Sourdough breads are made with a sourdough starter. The starter cultivates yeast and lactobacilli in a mixture of flour and water, making use of the microorganisms already present on flour; it does not need any added yeast. A starter may be maintained indefinitely by regular additions of flour and water. Some bakers have starters many generations old, which are said to have
1827-536: The straight dough process , the sourdough process , the Chorleywood bread process and the sponge and dough process . Professional bread recipes are stated using the baker's percentage notation. The amount of flour is denoted to be 100%, and the other ingredients are expressed as a percentage of that amount by weight. Measurement by weight is more accurate and consistent than measurement by volume, particularly for dry ingredients. The proportion of water to flour
1890-521: The Elder reported that the Gauls and Iberians used the foam skimmed from beer , called barm , to produce "a lighter kind of bread than other peoples" such as barm cake . Parts of the ancient world that drank wine instead of beer used a paste composed of grape juice and flour that was allowed to begin fermenting, or wheat bran steeped in wine , as a source for yeast . The most common source of leavening
1953-559: The FODMAPs that cause discomfort can be broken down during a rising time of four hours. In the study, whole-grain yeast doughs were examined after different rising times; the highest level of FODMAPs was present after one hour in each case and decreased thereafter. The study thus shows that it is essentially the baking technique and not the type of grain that determines whether a bread is well tolerated or not. A better tolerance of bread made from original cereals can therefore not be explained by
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2016-405: The bread is baked in an oven . Many breads are made from a " straight dough ", which means that all of the ingredients are combined in one step, and the dough is baked after the rising time; others are made from a " pre-ferment " in which the leavening agent is combined with some of the flour and water a day or so ahead of baking and allowed to ferment overnight. On the day of baking, the rest of
2079-423: The crumb and the overall texture by stabilizing and strengthening the gluten. Some artisan bakers forego early addition of salt to the dough, whether wholemeal or refined, and wait until after a 20-minute rest to allow the dough to autolyse . Mixtures of salts are sometimes employed, such as employing potassium chloride to reduce the sodium level, and monosodium glutamate to give flavor ( umami ). Leavening
2142-569: The development of gluten in breads by coating and lubricating the individual strands of protein. They also help to hold the structure together. If too much fat is included in a bread dough, the lubrication effect causes the protein structures to divide. A fat content of approximately 3% by weight is the concentration that produces the greatest leavening action. In addition to their effects on leavening, fats also serve to tenderize breads and preserve freshness. Bread improvers and dough conditioners are often used in producing commercial breads to reduce
2205-702: The dough is allowed to autolyse . Water, or some other liquid, is used to form the flour into a paste or dough. The weight or ratio of liquid required varies between recipes, but a ratio of three parts liquid to five parts flour is common for yeast breads. Recipes that use steam as the primary leavening method may have a liquid content in excess of one part liquid to one part flour. Instead of water, recipes may use liquids such as milk or other dairy products (including buttermilk or yogurt ), fruit juice, or eggs. These contribute additional sweeteners, fats, or leavening components, as well as water. Fats, such as butter, vegetable oils, lard, or that contained in eggs, affect
2268-407: The dough rises for several hours, industrial breads rise for a much shorter time, usually only one hour. However, a sufficiently long rising time is important to break down the indigestible FODMAP carbohydrates. Some flours (for example, spelt , emmer and einkorn ) contain fewer FODMAPs, but the difference between grain types is relatively small (between 1 and 2 percent by weight ). Instead, 90% of
2331-459: The dough sponginess and elasticity), common or bread wheat is the most common grain used for the preparation of bread, which makes the largest single contribution to the world's food supply of any food. Bread is also made from the flour of other wheat species (including spelt , emmer , einkorn and kamut ). Non-wheat cereals including rye , barley , maize (corn), oats , sorghum , millet and rice have been used to make bread, but, with
2394-425: The dough, which gives the finished product a whiter crumb, instead of the cream color preferred by most artisan bakers. Wheat flour, in addition to its starch, contains three water-soluble protein groups ( albumin , globulin , and proteoses ) and two water-insoluble protein groups ( glutenin and gliadin ). When flour is mixed with water, the water-soluble proteins dissolve, leaving the glutenin and gliadin to form
2457-502: The elements (alongside wine ) of the Eucharist , and in other religions including Paganism . In many cultures , bread is a metaphor for basic necessities and living conditions in general. For example, a "bread-winner" is a household's main economic contributor and has little to do with actual bread-provision. This is also seen in the phrase "putting bread on the table". The Roman poet Juvenal satirized superficial politicians and
2520-535: The exception of rye, usually in combination with wheat flour as they have less gluten. Gluten-free breads are made using flours from a variety of ingredients such as almonds, rice, sorghum, corn, legumes such as beans, and tubers such as cassava. Since these foods lack gluten, dough made from them may not hold its shape as the loaves rise, and their crumb may be dense with little aeration. Additives such as xanthan gum , guar gum , hydroxypropyl methylcellulose (HPMC), corn starch , or eggs are used to compensate for
2583-486: The gas bubbles that fluff up bread. In many countries, commercial bread often contains additives to improve flavor, texture, color, shelf life, nutrition, and ease of production. The Old English word for bread was hlaf ( hlaifs in Gothic : modern English loaf ) which appears to be the oldest Teutonic name. Old High German hleib and modern German Laib derive from this Proto-Germanic word, which
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2646-605: The ground. This behavior leads to many normally biennial plants being treated as annuals in some areas. Conversely, an annual grown under extremely favorable conditions may have highly successful seed propagation, giving it the appearance of being biennial or perennial. Some short-lived perennials may appear to be biennial rather than perennial. True biennials flower only once, while many perennials will flower every year once mature. Biennials grown for flowers, fruits, or seeds are grown for two years, whereas those grown for edible leaves or roots are harvested after one year—and are not kept
2709-510: The ingredients are added, and the process continues as with straight dough. This produces a more flavorful bread with better texture. Many bakers see the starter method as a compromise between the reliable results of baker's yeast and the flavor and 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 pre-ferments fall into one of three categories: " poolish " or "pouliche",
2772-1000: The intense heat at the bread surface. The crust of most breads is harder, and more complexly and intensely flavored, than the rest. Old wives' tales suggest that eating the bread crust makes a person's hair curlier. Additionally, the crust is rumored to be healthier than the remainder of the bread. Some studies have shown that this is true as the crust has more dietary fiber and antioxidants such as pronyl - lysine . Doughs are usually baked , but in some cuisines breads are steamed (e.g., mantou ), fried (e.g., puri ), or baked on an unoiled frying pan (e.g., tortillas ). It may be leavened or unleavened (e.g. matzo ). Salt , fat and leavening agents such as yeast and baking soda are common ingredients, though bread may contain other ingredients, such as milk , egg , sugar , spice , fruit (such as raisins ), vegetables (such as onion ), nuts (such as walnut ) or seeds (such as poppy ). Methods of processing dough into bread include
2835-552: The lack of gluten. In wheat , phenolic compounds are mainly found in hulls in the form of insoluble bound ferulic acid , where it is relevant to wheat resistance to fungal diseases. Rye bread contains phenolic acids and ferulic acid dehydrodimers . Three natural phenolic glucosides, secoisolariciresinol diglucoside , p-coumaric acid glucoside and ferulic acid glucoside , can be found in commercial breads containing flaxseed . Glutenin and gliadin are functional proteins found in wheat bread that contribute to
2898-480: The major fatty acids are oleic , linoleic , petroselinic , and palmitic acids. Phytochemicals identified in caraway seed oil include thymol , o-cymene , γ‑terpinene , trimethylene dichloride, β-pinene , 2-(1-cyclohexenyl), cyclohexanone , β-phellandrene , 3-carene , α-thujene , and linalool . The fruits, usually used whole, have a pungent, anise -like flavor and aroma that comes from essential oils, mostly carvone , limonene , and anethole . Caraway
2961-486: The original cereal itself, but rather by the fact that traditional, artisanal baking techniques are generally used when baking original cereals, which include a long dough process. The study also showed that a long rising time also breaks down undesirable phytates more effectively, flavors develop better, and the finished bread contains more biologically accessible trace elements . Bread can be served at many temperatures ; once baked, it can subsequently be toasted . It
3024-443: The plant enters a period of dormancy for the colder months. Many biennials require a cold treatment, or vernalization before they will flower. During the next spring or summer , the stem of the biennial plant elongates greatly, or "bolts". The plant then flowers, producing fruits and seeds before it finally dies. There are far fewer biennials than either perennial plants or annual plants . Biennials do not always follow
3087-750: The public as caring only for " panem et circenses " ( bread and circuses ). In Russia in 1917, the Bolsheviks promised "peace, land, and bread." The term " breadbasket " denotes an agriculturally productive region. In parts of Northern , Central , Southern and Eastern Europe bread and salt is offered as a welcome to guests. In India , life's basic necessities are often referred to as "roti, kapra aur makan" (bread, clothes, and house). Words for bread, including "dough" and "bread" itself, are used in English -speaking countries as synonyms for money . A remarkable or revolutionary innovation may be called
3150-463: The reaction of the acid with the soda produces gas. Chemically leavened breads are called quick breads and soda breads . This method is commonly used to make muffins , pancakes , American-style biscuits , and quick breads such as banana bread . Many breads are leavened by yeast . The yeast most commonly used for leavening bread is Saccharomyces cerevisiae , the same species used for brewing alcoholic beverages. This yeast ferments some of
3213-412: The same pattern. Water is mixed with flour, salt and the leavening agent. Other additions (spices, herbs, fats, seeds, fruit, etc.) are not needed to bake bread, but are often used. The mixed dough is then allowed to rise one or more times (a longer rising time results in more flavor, so bakers often "punch down" the dough and let it rise again), loaves are formed, and (after an optional final rising time)
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#17327983034083276-547: The structure of bread. Glutenin forms interconnected gluten networks within bread through interchain disulfide bonds. Gliadin binds weakly to the gluten network established by glutenin via intrachain disulfide bonds. Structurally, bread can be defined as an elastic-plastic foam (same as styrofoam ). The glutenin protein contributes to its elastic nature, as it is able to regain its initial shape after deformation. The gliadin protein contributes to its plastic nature, because it demonstrates non-reversible structural change after
3339-415: The structure of the resulting bread. When relatively dry dough is worked by kneading , or wet dough is allowed to rise for a long time (see no-knead bread ), 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 are known as gluten . Gluten development improves if
3402-445: The sugars producing carbon dioxide . Commercial bakers often 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 with a growth culture. If kept in the right conditions, it provides leavening for many years. The baker's yeast and sourdough methods follow
3465-472: The time needed for rising and to improve texture and volume and to give antistaling effects. The substances used may be oxidising agents to strengthen the dough or reducing agents to develop gluten and reduce mixing time, emulsifiers to strengthen the dough or to provide other properties such as making slicing easier, or enzymes to increase gas production. Salt ( sodium chloride ) is very often added to enhance flavor and restrict yeast activity. It also affects
3528-635: The time taken to produce a loaf. The process, whose high-energy mixing allows for the use of grain with a lower protein content, is now widely used around the world in large factories. As a result, bread can be produced very quickly and at low costs to the manufacturer and the consumer. However, there has been some criticism of the effect on nutritional value. Bread is the staple food of the Middle East , Central Asia , North Africa , Europe , and in European-derived cultures such as those in
3591-435: The use of breadcrumbs to provide crunchy crusts or thicken sauces; toasted cubes of bread, called croutons , are used as a salad topping; seasoned bread is used as stuffing inside roasted turkey; sweet or savoury bread puddings are made with bread and various liquids; egg and milk-soaked bread is fried as French toast ; and bread is used as a binding agent in sausages , meatballs and other ground meat products. Bread
3654-451: The water from the inner surface of the bubbles within the dough. The steam expands and makes the bread rise. This is the main factor in the rising of bread once it has been put in the oven. CO 2 generation, on its own, is too small to account for the rise. Heat kills bacteria or yeast at an early stage, so the CO 2 generation is stopped. Salt-rising bread does not use yeast. Instead, it
3717-508: Was borrowed into some Slavic ( Czech : chléb , Polish : bochen chleba , Russian : khleb ) and Finnic ( Finnish : leipä , Estonian : leib ) languages as well. The Middle and Modern English word bread appears in other Germanic languages , such as West Frisian : brea , Dutch : brood , German : Brot , Swedish : bröd , and Norwegian and Danish : brød ; it may be related to brew or perhaps to break , originally meaning "broken piece", "morsel". Bread
3780-534: Was later developed by the Flour Milling and Baking Research Association for the Chorleywood bread process . It manipulates the gas bubble size and optionally the composition of gases in the dough via the gas applied to the headspace. Bread has a significance beyond mere nutrition in many cultures because of its history and contemporary importance. Bread is also significant in Christianity as one of
3843-688: Was mentioned by the early Greek botanist Pedanius Dioscorides as a herb and tonic. It was later mentioned in the Roman Apicius as an ingredient in recipes. Caraway was known in the Arab world as karawiya , and cultivated in Morocco . The only species that is cultivated is Carum carvi , its fruits being used in many ways in cooking and in the preparation of medicinal products and liqueurs. The plant prefers warm, sunny locations and well-drained soil rich in organic matter. In warmer regions, it
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#17327983034083906-499: Was saved to be the starter for next week's bread. The rapid expansion of steam produced during baking leavens the bread, which is as simple as it is unpredictable. Steam-leavening is unpredictable since the steam is not produced until the bread is baked. Steam leavening happens regardless of the raising agents (baking soda, yeast, baking powder, sour dough, beaten egg white) included in the mix. The leavening agent either contains air bubbles or generates carbon dioxide. The heat vaporises
3969-408: Was to retain a piece of dough from the previous day to use as a form of sourdough starter , as Pliny also reported. The ancient Egyptians, Greeks, and Romans all considered the degree of refinement in the bakery arts as a sign of civilization. The Chorleywood bread process was developed in 1961; it uses the intense mechanical working of dough to dramatically reduce the fermentation period and
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