AskDefine | Define kneading

User Contributed Dictionary

English

Verb

kneading
  1. present participle of knead

Extensive Definition

For kneading of clay, see wedging
Kneading is a process in the making of bread, used to mix together the ingredients and add strength to the bread. Its importance lies in the mixing of flour with water. When these two ingredients are combined and kneaded, the gliadin and glutenin proteins in the flour expand and form strands of gluten, which gives bread its texture. (To aid gluten production, many recipes use bread flour, which is higher in protein than all-purpose flour.) The kneading process warms and stretches these gluten strands, eventually creating a springy and elastic dough. If the dough is not kneaded enough, it will not be able to hold the tiny pockets of air (CO2) created by the leavening agent (such as yeast or baking powder), and will collapse, leaving a heavy and dense loaf.
Kneading can be performed with a breadmaker, a mixer, a dough hook or by hand. The dough (which usually consists of flour, salt, water, oil and yeast) is put on a floured surface, pressed and stretched with the heel of the hand, folded over, and rotated through 90º repeatedly. This process continues for around 10 minutes, until the dough is slightly elastic and smooth. The dough can then be allowed to rise or "proved".
Similar to kneading is knocking back or punching down, which is sometimes performed to the dough after it has been proved. The dough is punched once or twice, after which it is kneaded gently for a short time. The aim of this is to remove any large air pockets which have formed in the dough, create an even texture in the bread and redistribute the nutrients for the yeast, thus allowing fermentation to continue. The dough can then be proved a second time. Another method of knocking back (also known as "folding") is to gently stretch and pat out the proved dough before folding the sides in towards the centre.

Footnotes

See also

kneading in Danish: æltning
kneading in French: pétrissage
kneading in Walloon: prustixhaedje
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