What will happen to 'pooris' and 'unused kneaded flour' if they are left in the open for a day or two?

If pooris and unused kneaded flour are left in the open for a day or two they get contaminated by microbes which cause fermentation of the dough and it would result spoilage of kneaded flour.

But the pooris as they are fried they will remain good as they are deeply fried which killed the microbes.