Easy Ways to Ferment Idli-Dosa Batter Without Baking Soda

Nothing beats a plate of soft idlis or crispy dosas, but getting the batter right usually takes hours of fermentation. If you've forgotten to prepare it in advance, a few simple kitchen tricks can help speed up the process. While naturally fermented batter still gives the best flavour and texture, these methods can be useful when you're short on time.

Speed Up Fermentation with a Pressure Cooker

A pressure cooker can create the warm environment needed for faster fermentation. Pour the batter into a container, add salt, and place it inside a slightly warmed pressure cooker. Close the lid without the whistle, heat it on a low flame for about five minutes, then switch off the heat. Leave the batter inside for around an hour to encourage quicker fermentation.

Choose the Right Container

The vessel you use can affect how well the batter ferments. Stainless steel and clay containers help retain warmth more effectively than plastic, making them a better choice for faster and more even fermentation.