Question: can idli batter go bad?
Answer: Fermented dosa batter cannot be stored more than 2-3 days in an airtight container. Other than that it will get a sour flavor, and form acidity in our stomach. Nowadays more people are opting for readymade idli dosa batter over homemade idli dosa batter as it very easy to use and we can store it up to 7 days.