During a Q&A on Twitter, J.K. Rowling made a surprising revelation about Rubeus Hagrid, one of the best-loved characters from the Harry Potter series.
Home bakers generally donât need to reduce or increase liquid amounts to compensate for the type of yeast used since the quantities are so small. 1  To substitute instant or bread machine yeast for active dry yeast, use 25% less instant yeast than active dry.
The yeast break down some of the starch and sugar present in the mixture, producing carbon dioxide. The carbon dioxide bubbles through the dough, forming many air holes and causing the bread to rise. Since oxygen is present, no alcohol is produced when the bread is rising. When the bread is baked, the air holes give the bread a lighter texture. In recent times, yeast have been used to aid in the production of alternative energy sources that do not produce toxic chemicals as byproducts.