yeastgreenspun.com : LUSENET : Bread.com FAQ : One Thread
How does yeast make the bread rise?
-- Anonymous, March 09, 2001
Yeast consists out of a mixture of yeast, flour, water, sugar and salt. Yeast changes sugars in the dough into carbon dioxide and alcohol. The bubbles of carbon dioxide make the dough rise.
-- Anonymous, March 12, 2001
...and the proteins combine to make a strong elastic sheet called gluten (formed by adding water with wheat flour)which stretches but prevents the gases from escaping.
-- Anonymous, March 13, 2001