Preventing batter from leaking through the holes of the idli plates in an idli cooker involves a few simple steps that can make the cooking process smoother and keep your idlis in perfect shape:
Grease the Idli Molds: Before pouring the batter into the idli molds, lightly grease them with oil. This not only prevents sticking but also creates a slight barrier that can help minimize leakage.
Consistency of the Batter: Ensure the batter is of the right consistency—not too thin. A thicker batter will not only prevent leakage but also yield softer, fluffier idlis. If your batter is too runny, consider adding a bit of rice flour to thicken it slightly. However, be cautious not to make the batter too thick, as this could affect the texture of the idlis.
Fill the Molds Properly: Do not overfill the idli molds. Fill them only about three-quarters full. As the idlis cook, they will expand, and overfilling the molds can cause the batter to leak through the holes and into the steamer.
Check the Holes: Before pouring the batter, make sure the holes on the idli plates are not clogged. Clogged holes can cause uneven cooking and potential leakage as the steam tries to escape. A quick rinse or poke with a toothpick can ensure they are clear.
Layering the Plates: If using a stacked idli cooker with multiple tiers of plates, align them in such a way that the idlis on the upper plates do not directly overlap with those below. This prevents the batter from dripping down onto the idlis beneath. Some cookers are designed with offset stacking for this purpose.
Use a Cloth: For an extra measure to prevent leakage, you can line the idli molds with a thin, clean cloth before adding the batter. This method is traditional and can help absorb any excess moisture, preventing the batter from leaking through the holes. However, it’s more labor-intensive as it requires cleaning the cloths after each use.
By following these tips, you should be able to cook your idlis without the batter leaking through the holes, keeping your idli cooker clean and your idlis in perfect shape.