Soft idlies depend on correct rice selection, properly aerated urad dal and controlled fermentation. Idli batter must trap air during grinding and fermentation to produce a light, fluffy texture after steaming.
Traditional idli uses parboiled medium-grain rice. For best results, use Idli Rice, which is processed specifically for fermentation. Basmati rice is not suitable as it produces dry and crumbly idlies.
| Preparation Type | Rice | Urad Dal | Notes |
|---|---|---|---|
| Standard Idli | 3 cups | 1 cup | Balanced softness & structure |
| Softer Idli | 2.5 cups | 1 cup | Higher aeration |
| Thatte Idli | 3 cups | 1 cup | Slightly thicker batter |
| Idli & Dosa Batter | 3 cups | 1 cup | Thin slightly for dosa use |
Wash rice and dal separately. Soak for 4–6 hours. In colder European climates, slightly warm water (not hot) may assist later fermentation.
Grind urad dal until fluffy and airy. Grind rice separately to a slightly coarse texture. Combine both and mix thoroughly by hand.
Fermentation ideally occurs between 25–32°C. Natural bacteria convert sugars into gas, causing the batter to rise.
| Room Temperature | Fermentation Time | Recommendation |
|---|---|---|
| 30°C | 6–8 hours | Normal fermentation |
| 25°C | 8–10 hours | Ideal range |
| 20°C | 10–14 hours | Use oven light method |
| Below 18°C | 14+ hours | Wrap container & provide warmth |
Urad dal not ground fluffy enough or fermentation incomplete.
Temperature too low. Extend fermentation time.
Rice ground too fine. Maintain slight grain texture.
Fermentation too long. Refrigerate once risen.
Grease moulds lightly. Steam 10–12 minutes. Allow to rest before removing.
Use flat moulds and steam slightly longer (12–14 minutes) for thicker idlies.
Bring batter to room temperature before steaming. Stir gently to preserve aeration.
Usually due to incomplete fermentation or insufficiently fluffy urad dal grinding.
Yes. Use oven-light method or insulated wrapping.
Between 8 and 14 hours depending on temperature.
No. Basmati does not produce the correct texture.
The base ratio is similar, but dosa batter is thinned before cooking.
For comparison with Sona Masoori, Ponni and Matta rice, refer to our Indian Rice Guide.