Question

Reema’s mother cooked dosa and idli. She added some yeast to the newly made batter and kept it for overnight. Reason behind it

Answer 1

Reason behind addition of yeast is -

1. Yeast carries out anaerobic respiration which results in release of carbon dioxide gas and formation of ethyl alcohol, which eventually evaporates.
2. The result is fluffiness of dough that provides required texture and taste. It is also responsible for softness.
3. In absence of yeast, old batter can also be added to achieve the desired result.