Question

which bacteria responsible to make water Rice sour? ...no spam plz

Answer 1

Fermentation, in simple terms, is the process of converting Carbohydrates to acid, alcohol and gas. When complex sugar is converted to ethanol, carbon di oxide,  using a microorganism, it produces a desirable stuff. Rice/Flour batter fermentation is usually aided by yeast. Wet Urad Dal and Fenugreek has the ability to absord yeast. Hot/warm air, moisture, pure water (non chlorinated one) are good aides for fermentation.