How long does a poolish keep for?

[luckydutch]

I've been thinking about experimenting with a poolish for my pizza making since I usually only make one large pizza at a time (for two to share) and it always feels like a lot of effort just for one pizza.

It would be neat if I could pre-make poolish for 2-3 pizzas to be eaten over the course of a week and then I just mix part of the poolish each day I plan to make pizza.

Will poolish stay OK in the fridge for 5-7 days though without over-fermenting?

[amolapizza]

I don't think so, you ought to use the poolish when it's ready.

You could probably make a poolish, then make a bigger dough and ball it, and then keep the balls several days in a fridge.

[foreplease]

I don't think so, you ought to use the poolish when it's ready.

You could probably make a poolish, then make a bigger dough and ball it, and then keep the balls several days in a fridge.

  This is what I do. Complete the dough when the poolish is ready, ball, refrigerate and use from 1 to 10 days later.

[Jersey Pie Boy]

Yes..this will also benefit the flavor of your dough.