Dosa Batter Fermentation

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How do you know when the batter is fermented enough but not too much? Is it to taste/preference?
Best Answer
When the dosa batter gets fermented, it doubles in volume and aereates well. To know if the dosa batter is over fermented, just taste a small part, it turns out sour. To prepare dosa batter, be sure the temperature is not too hot. If it is, it won't take much time to ferment the batter (5-6 hours). Refrigerate the batter so that it does not get over fermented.
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Quick Answer about "Dosa Batter Fermentation"
How is dosa batter fermented?
When one whips the batter (rice + urad dal), air gets incorporated into the batter. Lactobacillus and other bacteria from that air and the hand consume the sugars in the batter (rice mainly) and produce CO2 (carbon dioxide). This is fermentation of dosa batter (ditto for idli batter).How long should dosa batter be fermented?
Here it takes around 12-14 hours for the batter to ferment. If not using an Instant Pot, cover the container and place in an oven with lights on (especially if you live in a cold place). If you live in a very warm place, then simply keep the batter on the counter to ferment.Is it OK to ferment dosa batter?
The direct answer is yes. The dosa batter will ferment without salt. That is, the lack of salt won't prevent fermentation. If the dosa batter without salt doesn't ferment, it won't be due to the lack of salt.Can I ferment dosa batter for 24 hours?
Allow at least 24 hours to ferment. If you don't see tiny bubbles the next morning, the dough will not rise and you have to start all over again. If nothing works for u , try adding a fermentation starter like a spoonful of commercially prepared idli batter as they have live culture, it helps for fermentation..Idli/Dosa batter recipe|2 hours fermentation|How to ferment dosa batter in winter?|Eng subs
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