How does everyone create their poolish? Is it ok to be fairly random about it ? Just mix flour, water, add a bit of yeast and a bit of salt, and leave in the fridge? How long will it keep and do you need to do anything to it ?
I've fiddled a bit with poolish and tried using it up by adding to bread dough, but then I get very muddled over my quantity of flour and water as I've no idea how much flour and water is in the poolish I'm using ! Any tips would be really welcome.