Flour is universally according to a presence of starches, which are complex carbohydrates.

Commonly, a word "flour" utilized alone refers to wheat flour, which is one of a first nutrients around European & U.s. culture. Wheat flour is the independent ingredient inside virtually all types of breads & pastries. Wheat is therefore widely utilized because of an significant property: after wheat flour is mixed using the body of water, a complex protein called gluten develops. the gluten development is what gives wheat dough an pliable structure that allows it to exist as worked around a kind of ways, & which allows the retention of flatulence bubbles witharound an intact structure, consequent in a sponge-prefer texture to the final product. This is extremely desired for breads, cakes & more baked products.

The harsh preparation, somewhat farinaceous like than the mulct dust, is typically known as meal.

Types of flour
The huge majority of in todays world's flour consumption is wheat flour.

U.S. customary: Metric: Corn flour is very popular in the southern United States and in Mexico. Coarse whole-grain corn flour is usually called corn meal. Corn meal which has been leached with lye is called masa harina and is used to make tortillas and tamales in Mexican cooking. Corn flour should never be confused with cornstarch, which is known as cornflour in British English.

100% Rye flour is used to bake the traditional sourdough breads of Germany and Scandinavia. Most rye breads use a mix of rye and wheat flours because rye has a low gluten content. Pumpernickel bread is usually made exclusively of rye, and contains a mixture of rye flour and rye meal.

Rice flour is of great importance in Southeast Asian cuisine. Also edible rice paper can be made from it. Most rice flour is made from white rice, thus is essentially a pure starch, but whole-grain brown rice flour is commercially available.

Chestnut flour is popular in Corsica, the Périgord and Lunigiana. In Corsica, it is used to cook the local variety of polenta. In Italy, it is mainly used for desserts.

Chickpea flour (besan) is of great importance in Indian cuisine, and in Italy, where it is used for the Ligurian farinata.

Flour can also be made from soy beans, arrowroot, potatoes, taro, cattail and other non-grain foodstuffs.

Tang flour is a kind of wheat flour used in Chinese cooking that is suitable for making the outer layer of dumplings and buns. It is also called wheat starch. You can find it in any Chinese supermarket. It does not resemble Tang.

Flour type numbers

In some markets, the different available flour varieties are labeled according to the ash mass ("mineral content") that remains after a sample was incinerated in a laboratory oven (typically at 550 °C or 900 °C, see international standards ISO 2171 and ICC [http://www.icc.or.at/methods3.php#ICC104 104/1]). This is an easy to verify indicator for the fraction of the whole grain that ended up in the flour, because the mineral content of the starchy endosperm is much lower than that of the outer parts of the grain. Flour made from all parts of the grain (extraction rate: 100%) leaves about 2 g ash or more per 100 g dry flour. Plain white flour (extraction rate: 50-60%) leaves only about 0.4 g.

German flour type numbers (Mehltype) indicate the amount of ash (measured in milligrams) obtained from 100 g of the dry mass of this flour. Standard wheat flours (defined in DIN 10355) range from type 405 for normal white wheat flour for baking, to strong bread flour types 550, 650, 812, and the darker types 1050 and 1600 for wholegrain breads.

French flour type numbers (type de farine) are a factor 10 smaller than those used in Germany, that is they indicate the mineral content (in milligrams) per 10 g flour. Type 45 is the standard white flour for baking, types 65, 80, and 110 are strong bread flours of increasing darkness, and type 150 is a wholemeal flour.

Flour production

Milling of flour is accomplished by grinding grain between stones or steel wheels. Today, "stone-ground" usually means that the grain has been ground in a water-operated mill, in which a revolving stone wheel turns over a stationary stone wheel, with the grain in between. Many small appliance mills are now available, both hand-cranked and electric.

Flour dust suspended in air is explosive, as is any mixture of a finely powdered flammable substance with air see Lycopodium. Some of the worst civilian fatalities from explosions have been at flour mills.

History

In history, both large and hand mills were operated. Until modern times, much flour contained minute amounts of grit, either the result of poor sifting of the grain or of grinding stones together. This grit strongly abraded teeth.

One of the most ancient methods of grinding to produce flour was by using a pair of quern-stones. These were made out of rock, and were ground together by hand. They were generally replaced by millstones once mechanised forms of milling appeared, particularly the water mill and the windmill, although animals were also used to operate the millstones.

Flour products

Bread, pasta, crackers, many cakes, amongst many other foods, are made using flour. Wheat flour is also used to make a roux as a base for gravy and sauces. White wheat flour is the traditional base for wallpaper paste. It is also the base for papier-mâché. Cornstarch is a principal ingredient of many puddings.