In brief
Folding stretches part of the dough and brings it over the remainder in a specified sequence.
Useful to know
Folding stretches part of the dough and brings it over the remainder in a specified sequence. King Arthur describes it as a gentler way to develop structure during fermentation than intensive kneading. [1]
Follow the recipe’s number of folds and intervals rather than folding constantly. The dough also needs time to rest. This technique is different from folding egg-white foam into a cake batter: the same word describes different movements and purposes. Always specify which mixture and stage are being discussed.
Sources
For further detail and to check the information: