Question

Sometimes yoghurt becomes bitter and froths up why does it happens?

Answer 1

hey user
here's your answer

Curd can taste bitter sometimes if the the fermentation is in excess than the required amount.During the fermentation process the lactose present in the milk is converted to lactic acid under ambient environmental conditions.When the optimum consistency is reached it has to be refrigerated to stop the fermentation process .If this is not done then the fermentation continues and more amount of lactic acid is produced and turns the curd bitter.

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Answer 2

Answer:

sometimes yogis become bitter in taste and froths up .because if the fomentation is in excess than the required amount. during the fermentation process the lactose present in the mail is converted to lactic acid under ambient environmental condition.if the fermentation is excess then the more amount of lactic acid is produced and turn the yoghurt bitter and froths up.