Question

What makes idlies puffy??????

Answer 1

Answer:

Solution. In the preparation of idli batter, the batter is fermented using bacteria or yeast. During fermentation, CO2 bubbles which are released get trapped in the gluten, thus making idlis puffy.

Answer 2

here is the answer..

The bubbles of CO2 trapped in glutein makes idlies puffy...

Hope it's helpful