Question

When we notice the grinded idli and dosa batter in the next morning the batter would have increased in volume in the vessel,give reasons.​

Answer 1

Answer:

We notice the grinded idli and dosa batter in the next morning the batter would have increased in volume in the vessel because we add some soda in that and also it's volume increases because of heat

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Answer 2

Overnight fermentation of idli batter allows the rapid growth of the naturally occurring microorganisms viz. Leuconostoc mesenteroides and Streptoccous thermophiles in grains/legumes/utensils. These microorganisms divide and produce lactic acid and carbon dioxide that make the batter anaerobic and leaven the product.

Because this increased volume of idli batter is due to the incorporation of lactic acid bacteria into the batter during fermentation and entrapment of air.